1. Department of Global Public Health and Primary Care, Centre for Elderly and Nursing Home Medicine, University of Bergen, Bergen, Norway
2. University of Exeter Medical School, Exeter, UK
3. McLean Institute for Technology in Psychiatry and Geriatric Psychiatry Outpatient Services, McLean Hospital, Belmont, MA, USA
4. Department of Psychiatry, Harvard Medical School, Boston, MA, USA
5. Department of Health and Care, Municipality of Bergen, Bergen, Norway