1. University of Skövde, School of Health Sciences, Sweden
2. Turku University Hospital, Research Services, Finland
3. Department of Public Health, University of Turku, Finland
4. Social Sciences, Faculty of Education and Welfare Studies, Åbo Akademi University, Vasa, Finland
5. Folkhälsan Research Centre, Helsinki, Finland
6. Faculty of Medicine and Health Technology, University of Tampere, Finland