| Vitamin B12 supplementation for growth, development, and cognition in children.Cochrane Database Syst Rev | Pooled analysis | 2026 |
| Acupoint injection increases the efficacy of vitamin B12 for diabetic neuropathy: a meta-analysis and trial sequential analysis.Eur J Clin Nutr | Pooled analysis | 2026 |
| Efficacy of different routes of vitamin B12 supplementation for the treatment of patients with vitamin B12 deficiency: A systematic review and network meta-analysis.Ir J Med Sci | Pooled analysis | 2024 |
| Comparative Efficacy of Intranasal, Intramuscular, and Intravenous Vitamin B12 Therapy for Hematological Recovery in Vitamin B12 Deficiency Anemia: A Randomized Controlled Trial.Am J Hematol | Random groups | 2026 |
| Clinical safety of ultra-high-dose methylcobalamin in patients with amyotrophic lateral sclerosis: Open-label extension of a phase 2/3 randomized controlled study.J Neurol Sci | Random groups | 2026 |
| Effects of dexamethasone combined with vitamin B12 on percutaneous endoscopic interlaminar discectomy early outcomes: a randomized controlled trial.J Orthop Surg Res | Random groups | 2024 |
| Parenteral vs Oral Vitamin B12 in Children With Nutritional Macrocytic Anemia: A Randomized Controlled Trial.Indian Pediatr | Random groups | 2022 |
| Efficacy and Safety of Ultrahigh-Dose Methylcobalamin in Early-Stage Amyotrophic Lateral Sclerosis: A Randomized Clinical Trial.JAMA Neurol | Random groups | 2022 |
| The Efficacy of Intramuscular Injection of Vitamin B12 in the Treatment of Acute Herpetic Neuralgia-A Prospective Pilot Study.J Altern Complement Med | Random groups | 2021 |
| Effect of Vitamin B12 Injection on the Vocal Performance of Professional Singers: A Randomized, Double-blind, Placebo-Controlled, Crossover Trial.JAMA Otolaryngol Head Neck Surg | Random groups | 2021 |
| Local Administration of Methylcobalamin for Subacute Ophthalmic Herpetic Neuralgia: A Randomized, Phase III Clinical Trial.Pain Pract | Random groups | 2020 |
| Oral versus intramuscular administration of vitamin B12 for vitamin B12 deficiency in primary care: a pragmatic, randomised, non-inferiority clinical trial (OB12).BMJ Open | Random groups | 2020 |
| [JETALS: The Japanese Early-stage Trial of high dose methylcobalamin for ALS].Brain Nerve | Random groups | 2019 |
| Timing of folic acid/vitamin B12 supplementation and hematologic toxicity during first-line treatment of patients with nonsquamous non-small cell lung cancer using pemetrexed-based chemotherapy: The PEMVITASTART randomized trial.Cancer | Random groups | 2019 |
| Ultra-high-dose methylcobalamin in amyotrophic lateral sclerosis: a long-term phase II/III randomised controlled study.J Neurol Neurosurg Psychiatry | Random groups | 2019 |
| Early biomarker response and patient preferences to oral and intramuscular vitamin B12 substitution in primary care: a randomised parallel-group trial.Swiss Med Wkly | Random groups | 2017 |
| Acupuncture combined with methylcobalamin for the treatment of chemotherapy-induced peripheral neuropathy in patients with multiple myeloma.BMC Cancer | Random groups | 2017 |
| Local Administration of Methylcobalamin and Lidocaine for Acute Ophthalmic Herpetic Neuralgia: A Single-Center Randomized Controlled Trial.Pain Pract | Random groups | 2016 |
| Sublingual vitamin B12 compared to intramuscular injection in patients with type 2 diabetes treated with metformin: a randomised trial.N Z Med J | Random groups | 2016 |
| Therapeutic role of Vitamin B12 in patients of chronic tinnitus: A pilot study.Noise Health | Random groups | 2016 |
| Local Injection of Methylcobalamin Combined with Lidocaine for Acute Herpetic Neuralgia.Pain Med | Random groups | 2016 |
| Effects of folic acid and vitamin B12 supplementation on culling rate, diseases, and reproduction in commercial dairy herds.J Dairy Sci | Random groups | 2014 |
| Effect of butaphosphan and cyanocobalamin on postpartum metabolism and milk production in dairy cows.Animal | Random groups | 2013 |
| A single-center randomized controlled trial of local methylcobalamin injection for subacute herpetic neuralgia.Pain Med | Random groups | 2013 |
| Oral versus intramuscular administration of vitamin B12 for the treatment of patients with vitamin B12 deficiency: a pragmatic, randomised, multicentre, non-inferiority clinical trial undertaken in the primary healthcare setting (Project OB12).BMC Public Health | Random groups | 2012 |
| The efficacy and safety of intramuscular injections of methylcobalamin in patients with chronic nonspecific low back pain: a randomised controlled trial.Singapore Med J | Random groups | 2011 |
| Pharmacokinetics of oral cyanocobalamin formulated with sodium N-[8-(2-hydroxybenzoyl)amino]caprylate (SNAC): an open-label, randomized, single-dose, parallel-group study in healthy male subjects.Clin Ther | Random groups | 2011 |
| Comparing the efficacy and tolerability of a new daily oral vitamin B12 formulation and intermittent intramuscular vitamin B12 in normalizing low cobalamin levels: a randomized, open-label, parallel-group study.Clin Ther | Random groups | 2011 |
| An evaluation of plasma homocysteine in the assessment of vitamin B12 status of pasture-fed sheep.N Z Vet J | Random groups | 2010 |
| [Effects of intervention therapy of methylcobalamin and folic acid on plasma homocysteine concentration and homocysteine thiolactonases/paraoxonase activity in patients with type 2 diabetes mellitus].Zhonghua Yi Xue Za Zhi | Random groups | 2007 |
| Safety of hydroxocobalamin in healthy volunteers in a randomized, placebo-controlled study.Clin Toxicol (Phila) | Random groups | 2006 |
| Comparative effects of hydroxocobalamin and cyanocobalamin on plasma homocysteine concentrations in end-stage renal disease.Metabolism | Random groups | 2005 |
| Oral cyanocobalamin supplementation in older people with vitamin B12 deficiency: a dose-finding trial.Arch Intern Med | Random groups | 2005 |
| The effects of 'supra-physiological' vitamin B12 administration on temporary threshold shift.Int J Audiol | Random groups | 2004 |
| Randomized, placebo-controlled trial of intramuscular vitamin B12 for the treatment of hyperhomocysteinaemia in dialysis patients.Intern Med J | Random groups | 2003 |
| Vitamin B12 injection for preventing cobalt deficiency in lambs.Aust Vet J | Random groups | 2002 |
| Vitamin B12 in low back pain: a randomised, double-blind, placebo-controlled study.Eur Rev Med Pharmacol Sci | Random groups | 2000 |
| Effects of vitamin B12, folate, and vitamin B6 supplements in elderly people with normal serum vitamin concentrations.Lancet | Random groups | 1995 |
| Liver extract-folic acid-cyanocobalamin vs placebo for chronic fatigue syndrome.Arch Intern Med | Random groups | 1989 |
| The effect of vitamin B12 on physical performance capacity.Br J Nutr | Random groups | 1978 |
| Pain Fluctuations of Women with Subacute Herpetic Neuralgia During Local Methylcobalamin in Combination with Lidocaine Treatment: A Single-Blinded Randomized Controlled Trial.J Pain Res | No random groups | 2023 |
| The Efficacy of Oral Vitamin B12 Replacement for Nutritional Vitamin B12 Deficiency.J Pediatr Hematol Oncol | No random groups | 2018 |
| Phase II study of oral vitamin B12 supplementation as an alternative to intramuscular injection for patients with non-small cell lung cancer undergoing pemetrexed therapy.Cancer Chemother Pharmacol | No random groups | 2016 |
| Hydroxocobalamin supplementation and erythropoisis stimulating agent hyporesponsiveness in haemodialysis patients.Nephrology (Carlton) | No random groups | 2014 |
| The vitamin B12 absorption test, CobaSorb, identifies patients not requiring vitamin B12 injection therapy.Scand J Clin Lab Invest | No random groups | 2011 |
| Cognitive and psychiatric effects of vitamin B12 replacement in dementia with low serum B12 levels: a nursing home study.Int Psychogeriatr | No random groups | 2009 |
| Effect of butaphosphane and cyanocobalamin on regeneration of muscle fibres in pigs.Pol J Vet Sci | No random groups | 2009 |
| Measuring holotranscobalamin II, an early indicator of negative vitamin B12 balance, by radioimmunoassay in patients with ischemic cerebrovascular disease.Ann Hematol | No random groups | 2008 |
| Patient acceptance of intranasal cobalamin gel for vitamin B12 replacement therapy.Hawaii Med J | No random groups | 2006 |
| Parenteral vitamin B12 reduces hyperhomocysteinemia in end-stage renal disease.Clin Invest Med | No random groups | 2001 |
| Enteral vitamin B12 supplements reverse postgastrectomy B12 deficiency.Ann Surg | No random groups | 2000 |
| Normalization of plasma vitamin B12 concentration by intranasal hydroxocobalamin in vitamin B12-deficient patients.Gastroenterology | No random groups | 1997 |
| Effects of vitamin B12 on human circadian body temperature rhythm.Neurosci Lett | No random groups | 1995 |
| Hydroxocobalamin. V. Prolonged maintenance of high vitamin B12 blood levels following a short course of hydroxocobalamin injections.Blood | No random groups | 1966 |
| Hibiscus sabdariffa increases hydroxocobalamin oral bioavailability and clinical efficacy in vitamin B12 deficiency with neurological symptoms.Fundam Clin Pharmacol | Group followed over time | 2016 |
| Potential role of vitamin B12 supplementation in neurological recovery after severe traumatic brain injury.Nutrition | Case reports | 2026 |
| Pernicious Anemia Mimicking Thrombotic Thrombocytopenic Purpura in the Setting of Severe Vitamin B12 Deficiency.Cureus | Case reports | 2026 |
| Systemic Allergic Dermatitis Induced by Intramuscular Vitamin B12 Administration.Contact Dermatitis | Case reports | 2026 |
| Intravenous Methylcobalamin-Induced Anaphylactic Shock: A Case Report.Curr Drug Saf | Case reports | 2026 |
| Vitamin B12 Deficiency Mimicking Thrombotic Microangiopathy: A Case of Pseudo-Thrombotic Microangiopathy.J Community Hosp Intern Med Perspect | Case reports | 2026 |
| Metformin-Associated Functional Vitamin B12 Deficiency Presenting as Subacute Combined Degeneration in a 57-Year-Old Man With Diabetes Mellitus.Am J Case Rep | Case reports | 2026 |
| Combined Ultrasound-guided Perineural Vitamin B12 Injection and Pulsed Radiofrequency of C2 Dorsal Root Ganglion for Treatment of C2 Postherpetic Neuralgia: A Case Report.J Med Ultrasound | Case reports | 2026 |
| Vitamin B12 Deficiency Presenting as Pseudothrombotic Microangiopathy and Intestinal Pseudo-Obstruction.Cureus | Case reports | 2026 |
| Unveiling the Pernicious Truth: A Case Report on the Rare Presentation of Severe Vitamin B12 Deficiency.Cureus | Case reports | 2026 |
| Two Cases of Severe Food-Borne Botulism: Could High-Dose Methylcobalamin Accelerate Recovery?Cureus | Case reports | 2025 |
| Pseudothrombotic microangiopathy resulting from severe vitamin B12 deficiency in a pediatric patient with autism: A case report.SAGE Open Med Case Rep | Case reports | 2025 |
| Vitamin B12 deficiency in a young male with Imerslund-Gräsbeck syndrome: case report.Front Pediatr | Case reports | 2025 |
| Multifaceted Clinical Spectrum of Vitamin B12 Deficiency - a Case Report and Literature Review.J Blood Med | Case reports | 2025 |
| Clinical Case of a 20-Year-Old Man With Myeloneuropathy Due to Vitamin B12 Deficiency From Nitrous Oxide Abuse: A Case Report.Cureus | Case reports | 2025 |
| Intramuscular Vitamin B12 Treatment in Transcobalamin II Deficiency: Case Series Clinical Outcomes.Appl Clin Genet | Case reports | 2025 |
| Pretibial myxedema treated with intralesional tumescent drug delivery of hyaluronidase, triamcinolone, vitamin B12, and sodium bicarbonate dissolved in a tumescent epinephrine lidocaine solution.JAAD Case Rep | Case reports | 2025 |
| Complete Immunophenotypic Reversal of Chronic Lymphocytic Leukaemia With High Dose Parenteral Methylcobalamin: A Case Report and Brief Review of Cobalamin in Cancer.Cancer Rep (Hoboken) | Case reports | 2025 |
| Fewer injections, less pain: Successful cyanocobalamin desensitization.Allergol Immunopathol (Madr) | Case reports | 2025 |
| Severe Vitamin B12 deficiency with complications in an elderly patient: a case study of pancytopenia and haemolysis.Br J Community Nurs | Case reports | 2025 |
| Vitamin B12 Deficiency-Induced Massive Schistocytosis and Hemolytic Anemia Due to Pseudo-Thrombotic Microangiopathy: A Case Report.Cureus | Case reports | 2025 |
| Peripheral Neuropathy Secondary to a Functional Vitamin B12 Deficiency in the Setting of Erythrocytosis.Cureus | Case reports | 2025 |
| [A case of diagnosed pernicious anemia and subacute combined degeneration of the spinal cord with abnormally elevated serum vitamin B12].Rinsho Shinkeigaku | Case reports | 2025 |
| Vitamin B12 Deficiency in Pernicious Anemia: A Hemolytic Anemia Mimic.Cureus | Case reports | 2025 |
| Atypical Motor-Predominant Presentation of Subacute Combined Degeneration of Spinal Cord Due to Vitamin B12 Deficiency: A Case Report of Stroke Mimicry in the Absence of Classic Symptoms.Cureus | Case reports | 2024 |
| Correlation Between Nitrous Oxide and Functional Vitamin B12 Deficiency Resulting in Subacute Combined Degeneration of the Spinal Cord: A Case Report.Cureus | Case reports | 2024 |
| Microangiopathic thrombocytopenia caused by vitamin B12 deficiency responding to plasma exchange.Br J Haematol | Case reports | 2024 |
| Vitamin B12 responsive developmental and epileptic encephalopathy due to a novel mutation in the FUT2 gene: a case report.BMC Pediatr | Case reports | 2024 |
| Acute Mental Disorder Caused by Vitamin B12 Deficiency Eight Years After Total Gastrectomy.Cureus | Case reports | 2024 |
| Oral manifestations of vitamin B12 deficiency associated with pernicious anemia: A case report.Int J Surg Case Rep | Case reports | 2024 |
| Vitamin B12 Deficiency Manifesting As Pancytopenia, Lymphadenopathy, and Fever: A Clinical Mimic of Hematologic Malignancies.Cureus | Case reports | 2024 |
| Vitamin B12 Deficiency-Induced Neuropathy and Cognitive and Motor Impairment in the Elderly: A Case Study.Food Nutr Bull | Case reports | 2024 |
| Vitamin B12 Deficiency in Children and Adolescents: A Case for Revised Diagnostic Parameters.Food Nutr Bull | Case reports | 2024 |
| A Rare Cause of Vitamin B12 Deficiency in the Pediatric Age.Cureus | Case reports | 2024 |
| Vitamin B12 deficiency presenting as progressive blindness in a 33-year-old HIV-positive female patient on Efavirenz-based regimen: case report.Pan Afr Med J | Case reports | 2024 |
| Vitamin B12 Deficiency Disguised As Hemolytic Anemia: A Case Presentation.Cureus | Case reports | 2024 |
| A Case of Subacute Degeneration of the Spinal Cord Due to Vitamin B12 Deficiency Triggered by Nitrous Oxide Use.Cureus | Case reports | 2023 |
| Vitamin B12 induced acneiform eruption.Heliyon | Case reports | 2023 |
| Ultrasound-Guided Perineural Vitamin B12 Injection for Brachial Plexus Injury: A Preliminary Study.Cell Transplant | Case reports | 2023 |
| Severe Vitamin B12 Deficiency Presenting as Pancytopenia, Hemolytic Anemia, and Paresthesia: Could Your B12 Be Any Lower?Cureus | Case reports | 2022 |
| Pseudo-Thrombotic Microangiopathy Secondary to Vitamin B12 Deficiency.Case Rep Med | Case reports | 2022 |
| [Vitamin B12 deficiency in an infant child of a mother with pernicious anemia].Andes Pediatr | Case reports | 2022 |
| Pancytopenia Due to Vitamin B12 and Folic Acid Deficiency-A Case Report.Pediatr Rep | Case reports | 2022 |
| Functional Vitamin B12 Deficiency in Association With Nitrous Oxide Inhalation.Cureus | Case reports | 2022 |
| Chronic Atrophic Gastritis Presenting as Hemolytic Anemia due to Severe Vitamin B12 Deficiency.Case Rep Hematol | Case reports | 2021 |
| Recognizing Subacute Combined Degeneration in Patients With Normal Vitamin B12 Levels.Cureus | Case reports | 2021 |
| [Severe encephalopathy and vitamin B12 deficiency: reversibility after nutritional therapy].Nutr Hosp | Case reports | 2020 |
| [Neurologic involvement due to vitamin B12 deficiency in an infant].Arch Argent Pediatr | Case reports | 2020 |
| [Oral diagnosis of vitamin B12 deficiency due to long-term metformin treatment: a case report].Pan Afr Med J | Case reports | 2020 |
| Vitamin B12 Deficiency Anemia and Polyneuropathy Due to Chronic Radiation Enteritis.Intern Med | Case reports | 2020 |
| High-dose hydroxocobalamin achieves biochemical correction and improvement of neuropsychiatric deficits in adults with late onset cobalamin C deficiency.JIMD Rep | Case reports | 2020 |
| Infantile Tremor Syndrome after Peroral and Intramuscular Vitamin B12 Therapy: Two Cases.Klin Padiatr | Case reports | 2019 |
| Reversible cutaneous silent period abnormalities in vitamin B12 deficiency: A case report.Clin Neurophysiol Pract | Case reports | 2019 |
| [IMERSLUND-GRÄSBECK SYNDROME CONGENITAL FORM OF VITAMIN B12 DEFICIENCY ANEMIA].Georgian Med News | Case reports | 2019 |
| Psychomotor regression due to vitamin B12 deficiency.Pan Afr Med J | Case reports | 2018 |
| Anaphylactic Reaction to Cyanocobalamin: A Case Report.Cureus | Case reports | 2018 |
| Subcutaneous Eikenella corrodens, Actinomyces sp., and α-Hemolytic Streptococcus Abscess of the Thigh following a Vitamin B12 Injection.Case Rep Infect Dis | Case reports | 2018 |
| Pseudo-Thrombotic Thrombocytopenic Purpura due to Severe Vitamin B12 Deficiency.J La State Med Soc | Case reports | 2016 |
| Cobalt-Induced Contact Urticaria Presenting as Chronic Urticaria Due to Intramuscular Vitamin B12 Injections.Dermatitis | Case reports | 2016 |
| Nitrous oxide misuse and vitamin B12 deficiency.BMJ Case Rep | Case reports | 2016 |
| [Intranasal cyanocobalamin; an effective and safe therapeutic alternative].Nutr Hosp | Case reports | 2014 |
| Vitamin B12-induced acneiform eruption.Cutan Ocul Toxicol | Case reports | 2014 |
| A patient with an inborn error of vitamin B12 metabolism (cblF) detected by newborn screening.Pediatrics | Case reports | 2013 |
| Early treatment causes clinicoradiological reversal of myelopathy due to vitamin B12 deficiency.BMJ Case Rep | Case reports | 2013 |
| Vitamin B12 deficiency presenting as acute ataxia.BMJ Case Rep | Case reports | 2013 |
| Unusual association of Arnold-Chiari malformation and vitamin B12 deficiency.BMJ Case Rep | Case reports | 2012 |
| Severe vitamin B12 deficiency in an exclusively breastfed 5-month-old Italian infant born to a mother receiving multivitamin supplementation during pregnancy.BMC Pediatr | Case reports | 2012 |
| Involuntary movements after correction of vitamin B12 deficiency: a video-case report.Epileptic Disord | Case reports | 2012 |
| Subacute combined degeneration of the spinal cord despite prophylactic vitamin B12 treatment.J Clin Neurosci | Case reports | 2012 |
| Psychotic disorder, hypertension and seizures associated with vitamin B12 deficiency: a case report.Hum Exp Toxicol | Case reports | 2012 |
| Atypical presentation of vitamin B12 deficiency.Pak J Biol Sci | Case reports | 2012 |
| [Treatment response in vitamin B12 deficiency depends on the chosen vitamin B12 preparation].Ugeskr Laeger | Case reports | 2011 |
| [Homozygous mutation in the intrinsic factor gene in a child with severe vitamin B12 deficiency].Ugeskr Laeger | Case reports | 2011 |
| Serial nerve conduction studies in vitamin B12 deficiency-associated polyneuropathy.Neurol Sci | Case reports | 2011 |
| Vitamin B12-responsive severe leukoencephalopathy and autonomic dysfunction in a patient with "normal" serum B12 levels.J Neurol Neurosurg Psychiatry | Case reports | 2010 |
| Vitamin B12 optic neuropathy in autism.Pediatrics | Case reports | 2010 |
| Hydroxocobalamin dose escalation improves metabolic control in cblC.J Inherit Metab Dis | Case reports | 2009 |
| Sub-acute combined degeneration with an initially normal level of vitamin B12: a case report.Cases J | Case reports | 2009 |
| Functional vitamin B12 deficiency.Pract Neurol | Case reports | 2009 |
| Neurological consequences of vitamin B12 deficiency and its treatment.Pediatr Emerg Care | Case reports | 2008 |
| Type I immediate hypersensitivity reaction to cyanocobalamin but not hydroxycobalamin.Clin Exp Dermatol | Case reports | 2008 |
| Chronic psychosis associated with vitamin B12 deficiency.J Assoc Physicians India | Case reports | 2008 |
| Treatment responsive executive and behavioral dysfunction associated with Vitamin B12 deficiency.Neurocase | Case reports | 2008 |
| Hyperhomocysteinemia, deep vein thrombosis and vitamin B12 deficiency in a metformin-treated diabetic patient.J Formos Med Assoc | Case reports | 2007 |
| Seizures during treatment of Vitamin B12 deficiency.Seizure | Case reports | 2007 |
| [Oral treatment of vitamin B12 deficiency in subacute combined degeneration].Nervenarzt | Case reports | 2006 |
| [Reversible peripheral neuropathy induced by vitamin B12 deficiency].Neurophysiol Clin | Case reports | 2005 |
| Successful treatment of chronic erythema nodosum with vitamin B12.J Am Board Fam Pract | Case reports | 2005 |
| Megaloblastic anaemia: response to Amples A and B (folic acid, vitamin B12 (Cyanocobalamin), niacin and vitamin C)--a case report.Niger J Med | Case reports | 2005 |
| Anaphylactic reaction after intramuscular injection of cyanocobalamin (vitamin B12): a case report.J Pak Med Assoc | Case reports | 2005 |
| Vitamin B12 deficiency presenting with an acute reversible extrapyramidal syndrome.Neurol India | Case reports | 2004 |
| Vitamin B12-associated localized scleroderma and its treatment.Dermatol Surg | Case reports | 2004 |
| Adverse reactions to vitamin B12 injections due to benzyl alcohol sensitivity: successful treatment with intranasal cyanocobalamin.Allergy | Case reports | 2004 |
| A case of postoperative recurrence of fibrolamellar hepatocellular carcinoma with increased vitamin B12 binding capacity in a young Japanese female.Jpn J Clin Oncol | Case reports | 2004 |
| Posterior arm and deltoid compartment syndrome after vitamin B12 injection.Orthopedics | Case reports | 2004 |
| [A case of subacute combined degeneration with normal serum vitamin B12 level].Rinsho Shinkeigaku | Case reports | 2003 |
| [Myelopathy due to vitamin B12 deficiency presenting as transverse myelitis].Arq Neuropsiquiatr | Case reports | 2002 |
| Reversible myelopathy in a 34-year-old man with vitamin B12 deficiency.Mayo Clin Proc | Case reports | 2002 |
| [Myelosis funicularis as a result of secondary vitamin B12 deficiency in a 9-year-old girl].Wiad Lek | Case reports | 2002 |
| Progressive neurological deterioration and MRI changes in cblC methylmalonic acidaemia treated with hydroxocobalamin.J Inherit Metab Dis | Case reports | 1999 |
| Syncope following intramuscular injection of hydroxocobalamin in a paraplegic patient: indication for oral administration of cyanocobalamin in spinal cord injury patients.Spinal Cord | Case reports | 1999 |
| Ischemic strokes secondary to vitamin B12 deficiency-induced hyperhomocystinemia.Neurology | Case reports | 1998 |
| Biochemical and clinical response to hydroxocobalamin versus cyanocobalamin treatment in patients with methylmalonic acidemia and homocystinuria (cblC).J Pediatr | Case reports | 1998 |
| [A case of vitamin B12 deficiency with broad neurologic disorders and canities].No To Shinkei | Case reports | 1997 |
| Vitamin B12 deficiency: underdiagnosed, overtreated?Hosp Pract (1995) | Case reports | 1995 |
| [Fatty tissue necrosis and oil granuloma after subcutaneous injections of vitamin B12].Tidsskr Nor Laegeforen | Case reports | 1993 |
| Optic neuropathy in a patient with vitamin B12 deficiency: a case report.J Med Assoc Thai | Case reports | 1992 |
| [Atypical leukemia accompanied by vitamin B12 deficiency].Rinsho Ketsueki | Case reports | 1992 |
| Normalization of vitamin B12 absorption after ileal resection in children.J Paediatr Child Health | Case reports | 1992 |
| Complete cure of urinary and faecal incontinence after intravenous vitamin B12 therapy in a patient with post-gastrectomy megaloblastic anaemia.J Intern Med | Case reports | 1992 |
| Reversible hyperpigmentation of skin and nails with white hair due to vitamin B12 deficiency.Arch Dermatol | Case reports | 1986 |
| Selective vitamin B12 malabsorption without anaemia but with profound failure to thrive.Acta Paediatr Scand | Case reports | 1985 |
| [Agranulocytosis and impairment of liver functions terminating in death following vitamin B12 injection in pernicious anemia: report of a case].Rinsho Ketsueki | Case reports | 1984 |
| A case of mania secondary to vitamin B12 deficiency.Am J Psychiatry | Case reports | 1984 |
| [Vitamin-B12-dependent methylmalonic acidemia in twins].Monatsschr Kinderheilkd | Case reports | 1983 |
| Comparative efficacy of vitamin B12 supplementation routes in adults with replacement indication: a systematic review.EClinicalMedicine | Review of studies | 2026 |
| Oral vitamin B₁₂ after total gastrectomy for gastric cancer: mapping the evidence.Gastric Cancer | Review of studies | 2026 |
| Efficacy of sublingual and oral vitamin B12 versus intramuscular administration: insights from a systematic review and meta-analysis.Front Pharmacol | Review of studies | 2025 |
| Vitamin B12 Deficiency: Common Questions and Answers.Am Fam Physician | Review of studies | 2025 |
| The Neurological Sequelae of Vitamin B12 Deficiency: A Systematic Review and Randomized Controlled Trial.Cureus | Review of studies | 2025 |
| Desensitization for Vitamin B12 Hypersensitivity and How to Do It.Biomedicines | Review of studies | 2025 |
| Lack of Clinical Evidence Regarding the Guidelines for Vitamin B12 Deficiency: An Analysis From Literature and Recommendations From Clinical Practice.Food Nutr Bull | Review of studies | 2024 |
| Etiology, Clinical Manifestations, Diagnosis, and Treatment of Cobalamin (Vitamin B12) Deficiency.Cureus | Review of studies | 2024 |
| Vitamin B12 in Cats: Nutrition, Metabolism, and Disease.Animals (Basel) | Review of studies | 2023 |
| Metformin-Induced Vitamin B12 Deficiency among Type 2 Diabetes Mellitus' Patients: A Systematic Review.Curr Diabetes Rev | Review of studies | 2023 |
| Role of vitamin B12 in treating recurrent aphthous stomatitis: A review.Int J Vitam Nutr Res | Review of studies | 2022 |
| Inherited and acquired vitamin B12 deficiencies: Which administration route to choose for supplementation?Front Pharmacol | Review of studies | 2022 |
| Metformin-induced vitamin B12 deficiency can cause or worsen distal symmetrical, autonomic and cardiac neuropathy in the patient with diabetes.Diabetes Obes Metab | Review of studies | 2022 |
| Current Nanocarrier Strategies Improve Vitamin B12 Pharmacokinetics, Ameliorate Patients' Lives, and Reduce Costs.Nanomaterials (Basel) | Review of studies | 2021 |
| State of the art review: oral and nasal vitamin B12 therapy in the elderly.QJM | Review of studies | 2020 |
| Efficacy and tolerability of a fixed dose combination of cortex phospholipid liposomes and cyanocobalamin for intramuscular use in peripheral neuropathies.Minerva Med | Review of studies | 2019 |
| Oral Vitamin B12 Replacement for the Treatment of Pernicious Anemia.Front Med (Lausanne) | Review of studies | 2016 |
| Vitamin B12 deficiency - A 21st century perspective .Clin Med (Lond) | Review of studies | 2015 |
| A review of vitamin B12 in dermatology.Am J Clin Dermatol | Review of studies | 2015 |
| Vitamin B12 intramuscular injections versus oral supplements: a budget impact analysis.Ont Health Technol Assess Ser | Review of studies | 2013 |
| Vitamin B12 and cognitive function: an evidence-based analysis.Ont Health Technol Assess Ser | Review of studies | 2013 |
| Vitamin B12 deficiency in patients undergoing bariatric surgery: preventive strategies and key recommendations.Surg Obes Relat Dis | Review of studies | 2013 |
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| Oral or intramuscular vitamin B12?Drug Ther Bull | Review of studies | 2009 |
| Traveling the vitamin B12 pathway: oral delivery of protein and peptide drugs.Angew Chem Int Ed Engl | Review of studies | 2009 |
| Update on oral cyanocobalamin (vitamin B12) treatment in elderly patients.Drugs Aging | Review of studies | 2008 |
| Diagnosis and treatment of vitamin B12 deficiency--an update.Haematologica | Review of studies | 2006 |
| Oral vitamin B12 versus intramuscular vitamin B12 for vitamin B12 deficiency: a systematic review of randomized controlled trials.Fam Pract | Review of studies | 2006 |
| Is oral vitamin B12 as effective as intramuscular injection?Am Fam Physician | Review of studies | 2006 |
| Oral vitamin B12 versus intramuscular vitamin B12 for vitamin B12 deficiency.Cochrane Database Syst Rev | Review of studies | 2005 |
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| PMVE/MA-based microneedle patches for rapid transdermal delivery of vitamin B12: fabrication and evaluation.Drug Deliv Transl Res | In animals | 2026 |
| Amelioration of postpartum hyperketonemia using amino acids, cyanocobalamin, inositol, α-lipoic acid, or monensin during the transition period of dairy cows.J Dairy Sci | In animals | 2026 |
| Vitamin B12 Supports Skeletal Muscle Oxidative Phosphorylation Capacity in Male Mice.J Nutr | In animals | 2026 |
| Cyanocobalamin (vitamin B12) ameliorates lipopolysaccharide-induced systemic and lung inflammation in rats.Sci Rep | In animals | 2025 |
| Ameliorative effect of folic acid and vitamin B12 against Ivermectin-induced hepatotoxicity, renal toxicity, oxidative stress and immunohistochemical changes in male albino rats.Sci Rep | In animals | 2025 |
| Cyanocobalamin-loaded dissolving microneedles for enhanced transdermal delivery: development, characterization, and pharmacokinetic evaluation.Biomed Microdevices | In animals | 2025 |
| Pharmacokinetic profiles of methylcobalamin in rats after multiple administration routes by a simple LC-MS/MS assay with a small volume of plasma.J Pharmacol Toxicol Methods | In animals | 2024 |
| One-carbon metabolite supplementation increases vitamin B12, folate, and methionine cycle metabolites in beef heifers and fetuses in an energy dependent manner at day 63 of gestation.J Anim Sci | In animals | 2024 |
| Evaluation of the Regeneration Effects of Systemically Applied Methylprednisolone and Vitamin B12 on Mental Nerve Crush Injury.Turk Neurosurg | In animals | 2024 |
| Cyanocobalamin promotes muscle development through the TGF-β signaling pathway.Food Funct | In animals | 2022 |
| Aspects of transition cow metabolomics-Part I: Effects of a metaphylactic butaphosphan and cyanocobalamin treatment on the metabolome in liver, blood, and urine in cows with different liver metabotypes.J Dairy Sci | In animals | 2021 |
| Cyanocobalamin and/or calcitriol mitigate renal damage-mediated by tamoxifen in rats: Implication of caspase-3/NF-κB signaling pathways.Life Sci | In animals | 2021 |
| A pilot study comparing the pharmacokinetics of injectable cyanocobalamin and hydroxocobalamin associated with a trace mineral injection in cattle.J Vet Pharmacol Ther | In animals | 2021 |
| Efficacy of intramuscular hydroxocobalamin supplementation in cats with cobalamin deficiency and gastrointestinal disease.J Vet Intern Med | In animals | 2020 |
| Acute vitamin B12 supplementation evokes antidepressant response and alters Ntrk-2.Neuropharmacology | In animals | 2020 |
| Modest and variable efficacy of pre-exposure hydroxocobalamin and dicobalt edetate in a porcine model of acute cyanide salt poisoning.Clin Toxicol (Phila) | In animals | 2020 |
| Rapidly dissolving bilayer microneedle arrays - A minimally invasive transdermal drug delivery system for vitamin B12.Int J Pharm | In animals | 2019 |
| Added dietary cobalt or vitamin B12, or injecting vitamin B12 does not improve performance or indicators of ketosis in pre- and post-partum Holstein-Friesian dairy cows.Animal | In animals | 2019 |
| Vitamin B12 buccoadhesive tablets: auspicious non-invasive substitute for intra muscular injection: formulation, in vitro and in vivo appraisal.Drug Dev Ind Pharm | In animals | 2019 |
| Folate/Vitamin B12 Supplementation Combats Oxidative Stress-Associated Carcinogenesis in a Rat Model of Colon Cancer.Nutr Cancer | In animals | 2019 |
| Investigation of Receptor-Mediated Cyanocobalamin (Vitamin B12) Transport across the Inner Blood-Retinal Barrier Using Fluorescence-Labeled Cyanocobalamin.Mol Pharm | In animals | 2018 |
| Prospective long-term evaluation of parenteral hydroxocobalamin supplementation in juvenile beagles with selective intestinal cobalamin malabsorption (Imerslund-Gräsbeck syndrome).J Vet Intern Med | In animals | 2018 |
| Comparative study of the tissue distribution of equimolar repeated doses of hydroxocobalamin and cobalt chloride in the rats.Ann Biol Clin (Paris) | In animals | 2018 |
| C. elegans MRP-5 Exports Vitamin B12 from Mother to Offspring to Support Embryonic Development.Cell Rep | In animals | 2018 |
| Effects of Cobalamin (Vitamin B12) on Gentamicin Induced Nephrotoxicity in Rat.Drug Res (Stuttg) | In animals | 2017 |
| Vitamin B12-Loaded Buccoadhesive Films as a Noninvasive Supplement in Vitamin B12 Deficiency: In Vitro Evaluation and In Vivo Comparative Study With Intramuscular Injection.J Pharm Sci | In animals | 2017 |
| EXPRESS: Methylcobalamin ameliorates neuropathic pain induced by vincristine in rats: Effect on loss of peripheral nerve fibers and imbalance of cytokines in the spinal dorsal horn.Mol Pain | In animals | 2016 |
| Effects of butafosfan with or without cyanocobalamin on the metabolism of early lactating cows with subclinical ketosis.J Anim Physiol Anim Nutr (Berl) | In animals | 2016 |
| Evaluation of a Novel Tc-99m Labelled Vitamin B12 Derivative for Targeting Escherichia coli and Staphylococcus aureus In Vitro and in an Experimental Foreign-Body Infection Model.Mol Imaging Biol | In animals | 2015 |
| Effects of intramuscular administration of folic acid and vitamin B12 on granulosa cells gene expression in postpartum dairy cows.J Dairy Sci | In animals | 2015 |
| Vitamin B12 conjugation of peptide-YY(3-36) decreases food intake compared to native peptide-YY(3-36) upon subcutaneous administration in male rats.Endocrinology | In animals | 2015 |
| High-dose hydroxocobalamin administered after H2S exposure counteracts sulfide-poisoning-induced cardiac depression in sheep.Clin Toxicol (Phila) | In animals | 2015 |
| Intraosseous versus intravenous infusion of hydroxocobalamin for the treatment of acute severe cyanide toxicity in a Swine model.Acad Emerg Med | In animals | 2014 |
| Vitamin B12 status and the effects of vitamin B12 supplementation during the first year of life of spring calves from pasture-fed dairy herds.N Z Vet J | In animals | 2014 |
| The vitamin B12 analog cobinamide is an effective hydrogen sulfide antidote in a lethal rabbit model.Clin Toxicol (Phila) | In animals | 2014 |
| Effect of cyanocobalamin (vitamin B12) in the induction and expression of morphine tolerance and dependence in mice.Drug Res (Stuttg) | In animals | 2014 |
| Systemic and local peripheral injections of vitamin B12 suppressed orofacial nociception induced by formalin in rats.Drug Res (Stuttg) | In animals | 2014 |
| Metformin increases liver accumulation of vitamin B12 - an experimental study in rats.Biochimie | In animals | 2013 |
| Effects of cobalt supplementation and vitamin B12 injections on lactation performance and metabolism of Holstein dairy cows.J Dairy Sci | In animals | 2013 |
| Lack of production response in grazing dairy cows supplemented with long-acting injectable vitamin B12.N Z Vet J | In animals | 2012 |
| Bioavailability of vitamin B₁₂ in cows' milk.Br J Nutr | In animals | 2012 |
| First report about the mode of action of combined butafosfan and cyanocobalamin on hepatic metabolism in nonketotic early lactating cows.J Dairy Sci | In animals | 2011 |
| Effect of multiple intravenous injections of butaphosphan and cyanocobalamin on the metabolism of periparturient dairy cows.J Dairy Sci | In animals | 2010 |
| The effect of injectable butaphosphan and cyanocobalamin on postpartum serum beta-hydroxybutyrate, calcium, and phosphorus concentrations in dairy cattle.J Dairy Sci | In animals | 2010 |
| Influence of methionine supply on the response of lactational performance of dairy cows to supplementary folic acid and vitamin B12.J Dairy Sci | In animals | 2009 |
| Vitamin B12 absorption and metabolism in milk-fed lambs.N Z Vet J | In animals | 2009 |
| Effects of supplements of folic acid, vitamin B12, and rumen-protected methionine on whole body metabolism of methionine and glucose in lactating dairy cows.J Dairy Sci | In animals | 2009 |
| Dose response effects of long-acting injectable vitamin B12 plus selenium (Se) on the vitamin B12 and Se status of ewes and their lambs.N Z Vet J | In animals | 2006 |
| Thiamine, pyridoxine, cyanocobalamin and their combination inhibit thermal, but not mechanical hyperalgesia in rats with primary sensory neuron injury.Pain | In animals | 2005 |
| Effects of intramuscular injections of vitamin B12 on lactation performance of dairy cows fed dietary supplements of folic acid and rumen-protected methionine.J Dairy Sci | In animals | 2005 |
| Pharmacokinetics of high doses of cyanocobalamin administered by intravenous injection for 26 weeks in rats.Clin Exp Pharmacol Physiol | In animals | 2005 |
| Diversity in rat tissue accumulation of vitamin B12 supports a distinct role for the kidney in vitamin B12 homeostasis.Nephrol Dial Transplant | In animals | 2003 |
| Minimally invasive lymphatic mapping using fluorescently labeled vitamin B12.J Surg Res | In animals | 2003 |
| Methylcobalamin as antagonist to transient ototoxic action of gentamicin.Acta Otolaryngol | In animals | 2001 |
| Methylcobalamin attenuates the hypoxia/hypoglycemia- or glutamate-induced reduction in hippocampal fiber spikes in vitro.Eur J Pharmacol | In a lab dish | 1995 |
| Effect of vitamin B12 status on performance of the lactating ewe and gluconeogenesis from propionate.J Dairy Sci | In a lab dish | 1983 |
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| Quantitative aspects of the excretion of radioactive and microbiologically active material in urine after parenteral hydroxocobalamin.J Clin Pathol | In a lab dish | 1965 |
| Vitamin B12 replacement strategies: a Brazilian delphi consensus.EClinicalMedicine | Other paper | 2026 |
| Oral Cyanocobalamin Treatment in Infants Under 1 Year With Nutritional Vitamin B12 Deficiency: A Retrospective Comparison of 500 and 1000 µg Dose Regimens.J Pediatr Hematol Oncol | Other paper | 2026 |
| Vitamin B12 deficiency in an infant secondary to nutritional deficiency and an inadequate maternal diet.JPGN Rep | Other paper | 2026 |
| Pilot Newborn Screening for Vitamin B12 Deficiency in the Czech Republic: Results and Detailed Studies on Identified Babies and Their Mothers.Int J Neonatal Screen | Other paper | 2026 |
| Clinical Outcomes and Correlation With Biochemical Control in Hydroxocobalamin-Treated Patients With Early-Onset Cobalamin C Disease.JIMD Rep | Other paper | 2026 |
| Sublingual methylcobalamin treatment in infants with prolonged jaundice due to vitamin B12 deficiency.Front Pediatr | Other paper | 2026 |
| Intramuscular Cyanocobalamin Treatment in Patients with Corpus Atrophic Gastritis and Vitamin B12 Deficiency: Efficacy and Predictors of Increased Requirement-A Monocentric Longitudinal Real-Life Cohort Study.Nutrients | Other paper | 2026 |
| Comparison of Sublingual and Intramuscular Vitamin B12 in Children With Nutritional Vitamin B12 Deficiency Megaloblastic Anemia.Cureus | Other paper | 2026 |
| Hippophae rhamnoides: Way to Ameliorate Depressive Augury by Cyanocobalamin.Curr Drug Discov Technol | Other paper | 2026 |
| Protective effects of vitamin B12 against LPS-induced cognitive impairment through modulation of neuroinflammation, oxidative stress, and cholinergic dysfunction.Iran J Basic Med Sci | Other paper | 2026 |
| Vitamin B12 injection plus traditional Chinese medicine techniques for meralgia paresthetica: a randomized controlled trial.Front Med (Lausanne) | Other paper | 2025 |
| Evaluation of outcomes for patients with nitrous oxide-related myeloneuropathy treated with self-injection of hydroxocobalamin versus nurse-led injections on an ambulatory care pathway.BMJ Neurol Open | Other paper | 2025 |
| Vitamin B12 supports skeletal muscle oxidative phosphorylation capacity in male mice.bioRxiv | Other paper | 2025 |
| The Prevalence of Vitamin B12, Hemoglobin, and Ferritin Deficiency in Patients with Morbid Obesity and Changes in their Blood Levels after Bariatric Surgery.Int J Prev Med | Other paper | 2025 |
| Green and white analytical approach for parallel quantification of gabapentin and methylcobalamin in medicinal products using inventive RP-HPLC technique.Sci Rep | Other paper | 2025 |
| Rapid Improvement of Hyperpigmentation, Growth, and Developmental Milestones With High-Dose Hydroxocobalamin, Betaine, and Folinic Acid Treatment: The First Patient With Cobalamin G Deficiency in Taiwan.JIMD Rep | Other paper | 2025 |
| Evaluation of a New Sublingual Methylcobalamin Dosage Regimen for Childhood Vitamin B12 Deficiency.Children (Basel) | Other paper | 2025 |
| Vitamin B12 deficiency in newborns: impact on individual's health status and healthcare costs.Clin Chem Lab Med | Other paper | 2025 |
| Clinical and Hematological Characteristics of Vitamin B12 Deficiency and Evaluation of the Therapeutic Response to Vitamin B12 Supplementation.Cureus | Other paper | 2024 |
| Vitamin B12 Deficiency in Thrombotic Thrombocytopenic Purpura-Like Cases.Eur J Case Rep Intern Med | Other paper | 2024 |
| Oral vitamin B12 supplementation in pernicious anemia: a prospective cohort study.Am J Clin Nutr | Other paper | 2024 |
| Benefits of Combining Antiepileptic Drugs with Vitamin B12 on Redox Balance: Penicillin-Induced Experimental Epilepsy Model.Neuropsychiatr Dis Treat | Other paper | 2024 |
| The MMACHC variant c.158T>C: Mild clinical and biochemical phenotypes and marked hydroxocobalamin response in cblC patients.Mol Genet Metab | Other paper | 2024 |
| Patients' experiences with methylcobalamin injections in amyotrophic lateral sclerosis.Brain Circ | Other paper | 2024 |
| Effect of Vitamin B12 Replacement Intervals on Clinical Symptoms and Laboratory Findings in Gastric Cancer Patients after Total Gastrectomy.Cancers (Basel) | Other paper | 2023 |
| Uncovering the neuroprotective effect of vitamin B12 in pneumococcal meningitis: insights into its pleiotropic mode of action at the transcriptional level.Front Immunol | Other paper | 2023 |
| The Effect of High-Dose Methyl Vitamin B12 Therapy on Epileptogenesis in Rats: An In Vivo Study.Cureus | Other paper | 2023 |
| Protective role of vitamin B12 on acetic acid induced colitis in rats.Turk J Surg | Other paper | 2023 |
| Therapeutic Potential of Zeolites/Vitamin B12 Nanocomposite on Complete Freund's Adjuvant-Induced Arthritis as a Bone Disorder: In Vivo Study and Bio-Molecular Investigations.Pharmaceuticals (Basel) | Other paper | 2023 |
| Acquired Vitamin B12 Deficiency in Newborns: Positive Impact on Newborn Health through Early Detection.Nutrients | Other paper | 2022 |
| Combination of high performance liquid chromatography and flame atomic absorption spectrophotometry using a novel nebulizer interface supported T shaped slotted quartz tube for the determination of Vitamin B12.J Pharm Biomed Anal | Other paper | 2022 |
| A Hospital Based Study to Access the Usefulness of Using the Combination Regime of the Ferric Carboxy Maltose, Vitamin B12 and Folic Acid as a Treatment of Severe Anemia among Pregnant Women in a Rural Tribal Community of South Gujarat.Indian J Community Med | Other paper | 2022 |
| Hydroxocobalamin: An Effective Treatment for Flushing and Persistent Erythema in Rosacea.J Clin Aesthet Dermatol | Other paper | 2022 |
| Oral vs. Intramuscular Vitamin B12 for Treating Vitamin B12 Deficiency.Am Fam Physician | Other paper | 2022 |
| Sublingual methylcobalamin treatment is as effective as intramuscular and peroral cyanocobalamin in children age 0-3 years.Hematology | Other paper | 2021 |
| Testing and Prescribing Vitamin B12 in Swiss General Practice: A Survey among Physicians.Nutrients | Other paper | 2021 |
| Subcutaneous vitamin B12 administration using a portable infusion pump in cobalamin-related remethylation disorders: a gentle and easy to use alternative to intramuscular injections.Orphanet J Rare Dis | Other paper | 2021 |
| Plasma Vitamin B12 Levels, High-Dose Vitamin B12 Treatment, and Risk of Dementia.J Alzheimers Dis | Other paper | 2021 |
| Comparison of Sublingual and Intramuscular Administration of Vitamin B12 for the Treatment of Vitamin B12 Deficiency in Children.Rev Invest Clin | Other paper | 2020 |
| Atrophic glossitis in pernicious anemia patients can be treated to normal in two weeks by intramuscular injection of vitamin B12.J Dent Sci | Other paper | 2020 |
| Various Neurological Symptoms with Vitamin B12 Deficiency and Posttreatment Evaluation.J Pediatr Neurosci | Other paper | 2020 |
| Preparation of Lotus Root-Type Monolithic-Activated Carbons with an Hierarchical Pore Structure from Rice Husks and Their Adsorption of Vitamin B12.ACS Omega | Other paper | 2019 |
| Prevalence of Inappropriateness of Parenteral Vitamin B12 Administration in Ontario, Canada.JAMA Intern Med | Other paper | 2019 |
| Open Trial of Vitamin B12 Nasal Drops in Adults With Myalgic Encephalomyelitis/Chronic Fatigue Syndrome: Comparison of Responders and Non-Responders.Front Pharmacol | Other paper | 2019 |
| Parenteral hydroxocobalamin dose intensification in five patients with different types of early onset intracellular cobalamin defects: Clinical and biochemical responses.JIMD Rep | Other paper | 2019 |
| Comparison of sublingual vs. intramuscular administration of vitamin B12 for the treatment of patients with vitamin B12 deficiency.Drug Deliv Transl Res | Other paper | 2019 |
| Physicochemical Stability of Extemporaneously Prepared Methylcobalamin Injections in the Presence and Absence of Preservative and the Impact of Light Exposure.Int J Pharm Compd | Other paper | 2019 |
| Liquid Chromatography Method for the Simultaneous Quantification of Biotin and Vitamin B12 in Vitamin B Supplements.J AOAC Int | Other paper | 2019 |
| The Effect of Vitamin B12 and Folic Acid Supplementation on Serum Homocysteine, Anemia Status and Quality of Life of Patients with Multiple Sclerosis.Clin Nutr Res | Other paper | 2019 |
| Correlation of Vitamin D3 (Calcitriol) Serum Concentrations with Vitamin B12 and Folic Acid in Women Undergoing in vitro Fertilisation/Intracytoplasmatic Sperm Injection.Gynecol Obstet Invest | Other paper | 2019 |
| The Japanese Early-Stage Trial of High-Dose Methylcobalamin for Amyotrophic Lateral Sclerosis (JETALS): Protocol for a Randomized Controlled Trial.JMIR Res Protoc | Other paper | 2018 |
| [Injections to treat vitamin B12 deficiency are unnecessary].Tidsskr Nor Laegeforen | Other paper | 2018 |
| Comparison of the efficacy of parenteral and oral treatment for nutritional vitamin B12 deficiency in children.Hematology | Other paper | 2018 |
| Systematic Review and Pragmatic Clinical Approach to Oral and Nasal Vitamin B12 (Cobalamin) Treatment in Patients with Vitamin B12 Deficiency Related to Gastrointestinal Disorders.J Clin Med | Other paper | 2018 |
| A randomized, open labeled study comparing the serum levels of cobalamin after three doses of 500 mcg vs. a single dose methylcobalamin of 1500 mcg in patients with peripheral neuropathy.Korean J Pain | Other paper | 2018 |
| Voluntary fortification is ineffective to maintain the vitamin B12 and folate status of older Irish adults: evidence from the Irish Longitudinal Study on Ageing (TILDA).Br J Nutr | Other paper | 2018 |
| A vitamin B12 conjugate of exendin-4 improves glucose tolerance without associated nausea or hypophagia in rodents.Diabetes Obes Metab | Other paper | 2018 |
| Efficacy of Long-Term Oral Vitamin B12 Supplementation after Total Gastrectomy: Results from a Prospective Study.GE Port J Gastroenterol | Other paper | 2018 |