Vitamin B12.
D000042:Absorption; D000368:Aged; D000752:Anemia, Pernicious / Q000150:complications; D000818:Animals; D001692:Biological Transport; D055598:Chemical Phenomena; D002621:Chemistry; D002648:Child; D004169:Diphyllobothriasis / Q000150:complications; D005504:Food Analysis; D006801:Humans; D007408:Intestinal Absorption; D007437:Intrinsic Factor / Q000502:physiology; D008286:Malabsorption Syndromes / Q000150:complications; D009751:Nutritional Requirements; D013270:Stomach / Q000502:physiology; D014155:Transcobalamins / Q000502:physiology; D014805:Vitamin B 12 / Q000032:analysis / Q000378:metabolism; D014806:Vitamin B 12 Deficiency / Q000150:complications / Q000209:etiology / Q000628:therapy; D015043:Zollinger-Ellison Syndrome / Q000150:complications
D014155:Transcobalamins; D007437:Intrinsic Factor; D014805:Vitamin B 12