1. Department of Psychiatry, Faculty of Medicine, University of Turku, Turku, Finland
2. Department of Psychiatry, University of Helsinki, Helsinki, Finland
3. HUS Brain Centre, Psychiatry, Hospital District of Helsinki and Uusimaa and Helsinki University Hospital, Helsinki, Finland
4. Addiction Psychiatry Unit, Department of Psychiatry, Turku University Hospital, Turku, Finland
5. A-Clinic Ltd., Finland