Massive resection of the small bowel. A report of two cases.
D005260:Female; D006801:Humans; D007408:Intestinal Absorption; D007421:Intestine, Small / Q000601:surgery*; D008641:Mesenteric Vascular Occlusion / Q000601:surgery*; D008875:Middle Aged; D014805:Vitamin B 12 / Q000378:metabolism
D014805:Vitamin B 12