1. Department of Heart Disease; Haukeland University Hospital and Faculty of Health and Social Sciences; Bergen University College; Bergen Norway
2. Department of Medicine, Section of Cardiology; Sørlandet Hospital; Kristiansand Norway
3. Faculty of Health and Social Sciences; Bergen University College, Bergen, Norway and School of Health Sciences, Jönköping University; Jönköping Sweden
4. Centre for Clinical Research, Haukeland University Hospital, Bergen, Norway; Centre for Child and Adolescent Mental Health, Eastern and Southern Norway and Norwegian Centre for Violence and Traumatic Stress Studies; Oslo Norway