| Affiliation: | 1. Department of Addictive Behavior and Addiction Medicine, Central Institute of Mental Health, Mannheim, Medical Faculty Mannheim, Heidelberg University, , Germany;2. Department of Biostatistics, Central Institute of Mental Health, Mannheim, Medical Faculty Mannheim, Heidelberg University, , Germany;3. Department of Psychiatry and Psychotherapy, Technische Universit?t Dresden, , Dresden, Germany;4. Department of Psychiatry and Psychotherapy, Campus Charité Mitte, Charité – Universit?tsmedizin Berlin, , Berlin, Germany |
