title: Vitamin B12: an area of darkness.
mesh_terms: D000818:Animals; D055598:Chemical Phenomena; D002621:Chemistry; D003038:Cobamides / Q000378:metabolism; D006801:Humans; D006879:Hydroxocobalamin / Q000378:metabolism / Q000627:therapeutic use; D008661:Metabolism, Inborn Errors / Q000188:drug therapy / Q000378:metabolism; D014805:Vitamin B 12 / Q000378:metabolism / Q000627:therapeutic use; D014806:Vitamin B 12 Deficiency / Q000188:drug therapy
chemical_list: D003038:Cobamides; D014805:Vitamin B 12; D006879:Hydroxocobalamin