Absorption and malabsorption of vitamin B 12.
D005753:Gastric Mucosa / Q000502:physiology; D006801:Humans; D007408:Intestinal Absorption; D007422:Intestines / Q000382:microbiology; D007437:Intrinsic Factor / Q000378:metabolism; D008286:Malabsorption Syndromes / Q000209:etiology / Q000503:physiopathology*; D014805:Vitamin B 12 / Q000378:metabolism*; D014806:Vitamin B 12 Deficiency / Q000503:physiopathology
D007437:Intrinsic Factor; D014805:Vitamin B 12