Schilling test of vitamin B12 absorption.
D003036:Cobalt Isotopes; D006801:Humans; D007408:Intestinal Absorption; D007437:Intrinsic Factor; D012546:Schilling Test; D014805:Vitamin B 12 / Q000378:metabolism*
D003036:Cobalt Isotopes; D007437:Intrinsic Factor; D014805:Vitamin B 12