Detoxification of opiate addicts with multiple drug abuse: a comparison of buprenorphine vs. methadone. - Seifert,J.; Metzner,C.; Paetzold,W.; Borsutzky,M.; Passie,T.; Rollnik,J.; Wiese,B.; Emrich,H.M.; Schneider,U. (Pharmacopsychiatry, 2002)