1. German Centre for Addiction Research in Childhood and Adolescence (DZSKJ), University Medical Centre Hamburg-Eppendorf, Martinistrasse 52, 20246 Hamburg, Germany
2. STAD, Centre for Psychiatry Research, Department of Clinical Neuroscience, Karolinska Institutet & Stockholm Health Care Services, Region Stockholm, 11364 Stockholm, Sweden
3. Department of Psychology, Vrije Universiteit Brussel, 1050 Brussels, Belgium
4. Clinical Health Promotion Centre, Lund University, 22185 Lund, Sweden
5. Public Mental Health Research Program, National Institute of Mental Health, 25067 Klecany, Czech Republic