B12 vitamins (cobalamins).  II.  Neutral, basic and acidic cobalamins.
D006397:Hematinics; D006801:Humans; D006863:Hydrogen-Ion Concentration; D014805:Vitamin B 12; D014815:Vitamins
D006397:Hematinics; D014815:Vitamins; D014805:Vitamin B 12
VITAMIN B12