title: Letter: Ascorbic acid and the common cold.
mesh_terms: D001205:Ascorbic Acid / Q000627:therapeutic use*; D002986:Clinical Trials as Topic; D003139:Common Cold / Q000188:drug therapy*; D006801:Humans; D010919:Placebos
chemical_list: D010919:Placebos; D001205:Ascorbic Acid