Drug use and grades in college.
D000124:Achievement / Q000187:drug effects*; D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000661:Amphetamine / Q000494:pharmacology; D001463:Barbiturates / Q000494:pharmacology; D002188:Cannabis / Q000494:pharmacology*; D003042:Cocaine / Q000494:pharmacology; D004521:Educational Measurement; D005260:Female; D003932:Heroin / Q000494:pharmacology; D006801:Humans; D008238:Lysergic Acid Diethylamide / Q000494:pharmacology; D008297:Male; D008635:Mescaline / Q000494:pharmacology; D009518:New York; D009892:Opium / Q000494:pharmacology; D012737:Sex Factors; D012959:Socioeconomic Factors; D013334:Students; D019966:Substance-Related Disorders
D001463:Barbiturates; D003932:Heroin; D009892:Opium; D008238:Lysergic Acid Diethylamide; D000661:Amphetamine; D003042:Cocaine; D008635:Mescaline