Letter: Marijuana flashbacks.
D000661:Amphetamine; D001463:Barbiturates; D002188:Cannabis / Q000008:administration & dosage; D006213:Hallucinogens; D006801:Humans; D008238:Lysergic Acid Diethylamide / Q000008:administration & dosage; D008950:MMPI; D008517:Phytotherapy; D019966:Substance-Related Disorders
D001463:Barbiturates; D006213:Hallucinogens; D008238:Lysergic Acid Diethylamide; D000661:Amphetamine