Vitamin C and vigilance.
D000062:Accidents, Occupational / Q000517:prevention & control; D000293:Adolescent; D001205:Ascorbic Acid / Q000494:pharmacology*; D006801:Humans; D010919:Placebos; D011930:Reaction Time / Q000187:drug effects; D014851:Wakefulness / Q000187:drug effects*
D010919:Placebos; D001205:Ascorbic Acid