Marginal deficiencies of vitamins. 1. In animals.
D000818:Animals; D014801:Vitamin A; D014805:Vitamin B 12 / Q000378:metabolism*; D025101:Vitamin B 6; D014815:Vitamins
D014815:Vitamins; D014801:Vitamin A; D025101:Vitamin B 6; D014805:Vitamin B 12
VITAMIN B 12/metabolism; VITAMIN B 6/experimental