1. Danish Research Institute for Suicide Prevention, Mental Health Centre Copenhagen, Copenhagen, Denmark
2. Copenhagen Research Center for Mental Health, Mental Health Center Copenhagen, Copenhagen University Hospital, Copenhagen, Denmark
3. Department of Mental Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
4. Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, Maryland
5. Johns Hopkins Center on Aging and Health, Baltimore, Maryland
6. Center for Suicide Research, University of Oxford, Oxford, United Kingdom
7. Oxford Health NHS Foundation Trust, Warneford Hospital, Oxford, United Kingdom
8. Danish Center for Sleep Medicine, Rigshospitalet and Institute of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
9. Centre for Mental Health Research, Research School of Population Health, The Australian National University, Canberra, Australia