Simultaneous administration of gastric juice--bound and free radioactive cyanocobalamin: rapid procedure for differentiating between intrinsic factor deficiency and other causes of vitamin B 12 malabsorption.
D000752:Anemia, Pernicious / Q000151:congenital; D045728:Corrinoids; D005750:Gastric Juice; D006397:Hematinics; D006801:Humans; D007437:Intrinsic Factor / Q000172:deficiency; D014805:Vitamin B 12
D045728:Corrinoids; D006397:Hematinics; D007437:Intrinsic Factor; D014805:Vitamin B 12
GASTRIC JUICE; INTRINSIC FACTOR; VITAMIN B 12