Intrinsic factor and the other vitamin B12 transport proteins.
D001692:Biological Transport; D004064:Digestive System / Q000378:metabolism; D006801:Humans; D006863:Hydrogen-Ion Concentration; D007437:Intrinsic Factor / Q000302:isolation & purification; D011485:Protein Binding; D014805:Vitamin B 12; D014803:Vitamin B Complex
D014803:Vitamin B Complex; D007437:Intrinsic Factor; D014805:Vitamin B 12