Limits of absorption of orally administered vitamin B12: effect of intrinsic factor sources.
D045728:Corrinoids; D005750:Gastric Juice; D007421:Intestine, Small / Q000502:physiology*; D007422:Intestines; D007437:Intrinsic Factor; D014805:Vitamin B 12 / Q000378:metabolism*
D045728:Corrinoids; D007437:Intrinsic Factor; D014805:Vitamin B 12
GASTRIC JUICE; INTESTINE, SMALL/physiology; VITAMIN B12/metabolism