[Need for research on vitamins].
D006301:Health Services Needs and Demand; D006801:Humans; D012106:Research; D014801:Vitamin A; D014812:Vitamin K; D014815:Vitamins
D014815:Vitamins; D014801:Vitamin A; D014812:Vitamin K
VITAMINS
O potrebie proúcovanja vitaminskih droga.