Revisiting food-sourced vitamins for consumer diet and health needs: a perspective review, from vitamin classification, metabolic functions, absorption, utilization, to balancing nutritional requirements [PeerJ]
Medications Known to Decrease Vitamin B12 Levels
PDF] The pathophysiology of elevated vitamin B12 in clinical practice. | Semantic Scholar
Guidelines for the diagnosis and treatment of cobalamin and folate disorders - Devalia - 2014 - British Journal of Haematology - Wiley Online Library
Hypervitaminosis. - ppt download
Vitamin B12 Deficiency
Nutrients | Free Full-Text | Cross-Sectional Study of the Prevalence of Cobalamin Deficiency and Vitamin B12 Supplementation Habits among Vegetarian and Vegan Children in the Czech Republic