University of Bergen - Department of Clinical Medicine, affiliation not provided to SSRN, affiliation not provided to SSRN, University of Bergen - Genome Core Facility, University of Oslo - Division of Mental Health and Addiction, University of Oslo - NORMENT, University of Oslo - Oslo University Hospital, Medical University of Innsbruck, University of Stavanger - Stavanger University Hospital, St. Olav's University Hospital, University of Bergen - Haukeland University Hospital, University of Bergen - Haukeland University Hospital and University of Bergen - Haukeland University Hospital