1. Faculty of Social Sciences, Health Sciences; University of Tampere, PO Box 100; FI-33014 Finland
2. The Institute for Advanced Social Research; University of Tampere; Atalpa 213 Finland
3. Faculty of Social Sciences, Health Sciences; University of Tampere; Finland
4. Faculty of Social Sciences; University of Tampere; FI-33014 Finland
5. Department of Teacher Education; University of Helsinki; FI-00014 Finland
6. National Institute for Health and Welfare; FI-00271 Helsinki Finland
7. Faculty of Social Sciences, Health Sciences; University of Tampere; FI-33014 Finland