title: Megavitamin therapy.
mesh_terms: D001205:Ascorbic Acid / Q000009:adverse effects; D006801:Humans; D009539:Nicotinic Acids / Q000009:adverse effects; D009974:Orthomolecular Therapy / Q000009:adverse effects*; D014805:Vitamin B 12 / Q000009:adverse effects; D014810:Vitamin E / Q000009:adverse effects
chemical_list: D009539:Nicotinic Acids; D014810:Vitamin E; D014805:Vitamin B 12; D001205:Ascorbic Acid