[Vitamin C and respiratory infections].
D001205:Ascorbic Acid / Q000627:therapeutic use*; D002986:Clinical Trials as Topic; D003139:Common Cold / Q000517:prevention & control*; D005069:Evaluation Studies as Topic; D006801:Humans; D008297:Male; D010919:Placebos
D010919:Placebos; D001205:Ascorbic Acid
Vitamín C a respiracní infekce.