1. Central Satakunta Health Federation of Municipalities, Harjavalta, Finland
2. Satakunta Hospital District, Pori, Finland
3. Institute of Clinical Medicine, Family Medicine, University of Turku, Turku, Finland
4. Central Finland Central Hospital, Jyväskylä, Finland
5. Kuopio University Hospital, Kuopio, Finland
6. Medcare Foundation, Äänekoski, Finland
7. Turku University Hospital, Turku, Finland