title: Cocaine abuse among methadone-maintained patients.
authors.forename: A
authors.initials: A
authors.lastname: Oliveto
authors.forename: T
authors.initials: T
authors.lastname: Kosten
authors.forename: R
authors.initials: R
authors.lastname: Schottenfeld
authors.forename: D
authors.initials: D
authors.lastname: Ziedonis
mesh_terms: D002047:Buprenorphine / Q000627:therapeutic use; D003042:Cocaine; D015897:Comorbidity; D004311:Double-Blind Method; D006801:Humans; D008691:Methadone / Q000627:therapeutic use*; D009293:Opioid-Related Disorders / Q000453:epidemiology / Q000534:rehabilitation*; D016032:Randomized Controlled Trials as Topic; D019966:Substance-Related Disorders / Q000453:epidemiology / Q000534:rehabilitation*
chemical_list: D002047:Buprenorphine; D003042:Cocaine; D008691:Methadone