1. Department for Physical Health and Aging Norwegian Institute of Public Health Oslo Norway
2. Norwegian National Centre of Ageing and Health Vestfold Hospital Trust Tønsberg Norway
3. Department of Geriatric Medicine Oslo University Hospital Oslo Norway
4. Independent Researcher Vienna Austria
5. Centre for Fertility and Health Norwegian Institute of Public Health Oslo Norway
6. Ragnar Frisch Center for Economic Research Oslo Norway
7. Department of Global Public Health and Primary Care University of Bergen Bergen Norway
8. Faculty of Medicine University of Oslo Oslo Norway
9. Population Aging Research Center and Department of Sociology University of Pennsylvania Philadelphia Pennsylvania USA
10. Stanford Center on Longevity Stanford University Stanford California USA
11. Department for Alcohol, Tobacco and Drugs Norwegian Institute of Public Health Oslo Norway
12. Department of Neurology, Vagelos College of Physicians and Surgeons Department of Epidemiology Mailman School of Public Health Columbia University New York New York USA
13. HUNT Research Centre Department of Public Health and Nursing Faculty of Medicine and Health Sciences Norwegian University of Science and Technology Trondheim Norway
14. Levanger Hospital Nord‐Trøndelag Hospital Trust Levanger Norway
15. Department of Neurology Columbia University Vagelos College of Physicians and Surgeons New York New York USA
16. Department of Neuromedicine and Movement Science Faculty of Medicine and Health Sciences Norwegian University of Science and Technology Trondheim Norway