Measurement of B12 absorption by whole body counter: effect of B12 body store saturation.
D003037:Cobalt Radioisotopes; D006801:Humans; D006879:Hydroxocobalamin / Q000008:administration & dosage; D007273:Injections, Intramuscular; D014805:Vitamin B 12 / Q000378:metabolism*; D014915:Whole-Body Counting / Q000379:methods*
D003037:Cobalt Radioisotopes; D014805:Vitamin B 12; D006879:Hydroxocobalamin