1. Department of General Practice and Primary Health Care; University of Helsinki and Helsinki University Hospital; Helsinki Finland
2. Vantaa Health Center; Vantaa Finland
3. Primary Health Care Unit; Kuopio University Hospital; Kuopio Finland
4. Folkhälsan Research Center; Helsinki Finland
5. National Institute for Health and Welfare; Helsinki Finland
6. Karolinska Institute; Stockholm Sweden
7. Apotti; Helsinki Finland
8. Department of Chronic Disease Prevention; National Institute for Health and Welfare; Helsinki Finland