1. Institute of Clinical Medicine, University of Oslo, Oslo, Norway
2. Department of Public Health and Nursing, Norwegian University of Science and Technology (NTNU), Trondheim, Norway
3. Division of Mental and Physical Health, Norwegian Institute of Public Health, Oslo, Norway
4. Institute of Health and Society, University of Oslo, Oslo, Norway
5. School of Pharmacy, University of Oslo, Oslo, Norway
6. Center for Psychopharmacology, Diakonhjemmet Hospital, Oslo, Norway
7. Department of Research and Development, Telemark Hospital Trust, Skien, Norway
8. Norwegian National Advisory Unit on Ageing and Health, Vestfold Hospital Trust, Tønsberg, Norway
9. Department of General Practice, University of Helsinki, Helsinki, Finland
10. Unit of Primary Health Care, Helsinki University Hospital, Helsinki, Finland
11. Institute of Clinical Medicine, Campus Akershus University Hospital, University of Oslo, Oslo, Norway
12. Health Service Research Unit, Department of Neurology, Akershus University Hospital, Lørenskog, Norway
13. Department of Geriatric Medicine, Oslo University Hospital, Oslo, Norway