Using vitamin & mineral supplements: Part I. Maintenance of health.
D006262:Health; D006801:Humans; D008903:Minerals / Q000008:administration & dosage*; D009747:Nutritional Physiological Phenomena; D009751:Nutritional Requirements; D014815:Vitamins / Q000008:administration & dosage*
D008903:Minerals; D014815:Vitamins