title: Ascorbic acid, dietary restriction, and upper respiratory tract infection.
mesh_terms: D001205:Ascorbic Acid / Q000627:therapeutic use*; D002648:Child; D004032:Diet; D006801:Humans; D012141:Respiratory Tract Infections / Q000517:prevention & control*; D012459:Salicylates / Q000009:adverse effects*
chemical_list: D012459:Salicylates; D001205:Ascorbic Acid