Veganism: a clinical survey with observations on vitamin-B12 metabolism.
D001669:Biochemical Phenomena; D014676:Diet, Vegetarian; D006801:Humans; D014805:Vitamin B 12 / Q000378:metabolism*; D014815:Vitamins
D014815:Vitamins; D014805:Vitamin B 12
VEGETARIANISM; VITAMIN B 12/metabolism