1 Centre for Psychiatry Research, Department of Clinical Neuroscience, Karolinska Institutet & Stockholm Health Care Services, Stockholm County Council, Norra Stationsgatan 69, Stockholm, SE-11364, Sweden. anne.h.berman@ki.se.
2 Stockholm Center for Dependency Disorders, Stockholm, Sweden. anne.h.berman@ki.se.
3 Interdisciplinary Research Unit, Elective Surgery Center, Regional Hospital Silkeborg, Silkeborg, Denmark.
4 Department of Clinical medicine, Aarhus University, Aarhus, Denmark.
5 Trimbos Institute, The Netherlands Institute of Mental Health and Addiction, Utrecht, The Netherlands.
6 Arkin Mental Health Care, Amsterdam, The Netherlands.
7 Department of Psychiatry, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands.