1. Danish Dementia Research Centre, Section 8008, Department of Neurology Copenhagen University Hospital—Rigshospitalet Copenhagen Denmark
2. Department of Economics and Business Economics National Centre for Register‐based Research, Aarhus BSS, Aarhus University Aarhus V Denmark
3. Danish Research Institute for Suicide Prevention, Mental Health Centre Copenhagen Hellerup Denmark
4. Department of Mental Health Johns Hopkins Bloomberg School of Public Health Baltimore Maryland USA
5. Copenhagen Research Centre for Mental Health Hellerup Denmark
6. Center of Mental Health Research Australian National University Canberra Australian Capital Territory Australia
7. Department of Psychiatry and Behavioral Sciences Johns Hopkins School of Medicine Baltimore Maryland USA
8. Johns Hopkins Center on Aging and Health Baltimore Maryland USA
9. Department of Clinical Medicine University of Copenhagen Copenhagen Denmark