title: Incidence of recreational use of 3,4-methylenedimethoxymethamphetamine (MDMA, "ecstasy") on an undergraduate campus.
mesh_terms: D015104:3,4-Methylenedioxyamphetamine / Q000031:analogs & derivatives; D000662:Amphetamines; D002140:California; D006801:Humans; D018817:N-Methyl-3,4-methylenedioxyamphetamine; D013334:Students; D019966:Substance-Related Disorders / Q000453:epidemiology*
chemical_list: D000662:Amphetamines; D015104:3,4-Methylenedioxyamphetamine; D018817:N-Methyl-3,4-methylenedioxyamphetamine