TY - JOUR KW - Methadone KW - buprenorphine KW - morphine KW - craving KW - opioid dependency KW - Stimulants KW - Empirical Study KW - Quantitative Study KW - Human KW - Male KW - Female KW - Adulthood (18 yrs & older) KW - Young Adulthood (18-29 yrs) KW - Thirties (30-39 yrs) KW - Middle Age (40-64 yrs) KW - Aged (65 yrs & older) KW - Drug Therapy KW - polydrug abuse KW - cocaine KW - Substance use treatment KW - Heroin KW - Switzerland KW - article KW - 3383:Drug & Alcohol Rehabilitation AU - Salome Gastberger AU - Markus R. Baumgartner AU - Michael Soyka AU - Boris B. Quednow AU - Lea M. Hulka AU - Marcus Herdener AU - Erich Seifritz AU - Jochen Mutschler A1 - AD - Department of Psychiatry, Center for Addictive Disorders, Psychotherapy and Psychosomatics, Psychiatric Hospital, University of Zurich, Zurich, Switzerland salome.gastberger@uzh.ch; Zurich Institute of Forensic Medicine, Center for Forensic Hair Analysis, University of Zurich, Zurich, Switzerland ; Medical Park Chiemseeblick Fachklinik fur Psychosomatik, Bernau, Germany ; Department of Psychiatry, Experimental and Clinical Pharmacopsychology, Psychotherapy and Psychosomatics, Psychiatric Hospital, University of Zurich, Zurich, Switzerland ; Department of Psychiatry, Psychotherapy and Psychosomatics, Psychiatric Hospital, University of Zurich, Zurich, Switzerland ; Gastberger, Salome,Selnaustrasse 9,Zurich,Switzerland,CH-8001,Department of Psychiatry, Center for Addictive Disorders, Psychotherapy and Psychosomatics, Psychiatric Hospital, University of Zurich,salome.gastberger@uzh.ch BT - European addiction research C5 - Education & Workforce; Opioids & Substance Use CP - 4 DO - 10.1159/000500542 IS - 4 JF - European addiction research LA - English M1 - Journal Article PB - Karger PY - 2019 SN - 1022-6877, 1022-6877 SP - 207 EP - 212 EP - T1 - Concomitant heroin and cocaine use among opioid-dependent patients during methadone, buprenorphine or morphine opioid agonist therapy T2 - European addiction research TI - Concomitant heroin and cocaine use among opioid-dependent patients during methadone, buprenorphine or morphine opioid agonist therapy U1 - Education & Workforce; Opioids & Substance Use U3 - 10.1159/000500542 VL - 25 VO - 1022-6877, 1022-6877 Y1 - 2019 ER -