1. Norwegian National Advisory Unit on Aging and Health (Aging and Health) Vestfold Hospital Trust Tønsberg Norway
2. Faculty of Medicine University of Oslo Oslo Norway
3. Department of Health Sciences Norwegian University of Science and Technology (NTNU) Gjøvik Norway
4. Centre of Old Age Psychiatry Research Innlandet Hospital Trust Gjøvik Norway
5. Department of Public Health Science Faculty of Landscape and Society Norwegian University of Life Sciences Ås Norway
6. Faculty of Health Studies VID Specialized University Oslo Norway