1. Department of Public Health and General Practice, Faculty of Medicine, University of Kuopio, Kuopio, Finland
2. Medical School, Faculty of Medicine, University of Kuopio, Kuopio, Finland.
3. Department of Noncommunicable Disease Prevention and Health Promotion, World Health Organization, Geneva, Switzerland
4. Department of Epidemiology and Health Promotion, National Public Health Institute, Helsinki, Finland
5. Department of Public Health, University of Helsinki, Helsinki