1. Department of General Practice; University of Helsinki; Helsinki Finland
2. Unit of General Practice; Helsinki University Hospital; Helsinki Finland
3. Hospital, Rehabilitation, and Care Services; Helsinki Finland
4. Home Care; Espoo Finland
5. Department of Internal Medicine and Geriatrics; University of Helsinki; Helsinki Finland
6. Clinics of Internal Medicine and Geriatrics; Helsinki University Central Hospital; Helsinki Finland
7. Unit of General Practice; Oulu University Hospital; Oulu Finland