Assay of intrinsic factor with anti-intrinsic factor serum in vitro.
D001681:Biological Assay; D006801:Humans; D066298:In Vitro Techniques; D007437:Intrinsic Factor; D014805:Vitamin B 12
D007437:Intrinsic Factor; D014805:Vitamin B 12
INTRINSIC FACTOR; VITAMIN B 12