Letter: Colds and antihistaminic effects of vitamin C.
D000284:Administration, Oral; D000328:Adult; D001205:Ascorbic Acid / Q000008:administration & dosage / Q000494:pharmacology*; D003139:Common Cold / Q000517:prevention & control; D006634:Histamine H1 Antagonists; D006801:Humans; D012137:Respiratory System / Q000187:drug effects
D006634:Histamine H1 Antagonists; D001205:Ascorbic Acid