1. Memory Research and Treatment Centers Finland, Medical Center Hemo Oy, Lahti, Social Insurance Institution of Finland, University of Helsinki, and Clinics of General Internal Medicine and Geriatrics, Helsinki University Hospital, .
2. Central Union for the Welfare of the Aged, Finland
3. Department of Geriatrics, University of Helsinki and Unit of General Internal Medicine and Geriatrics, Helsinki University Hospital
4. Department of General Practice and Primary Health Care, University of Helsinki and Unit of General Practice, Helsinki University Hospital Helsinki, Finland