1. Faculty of Pedagogy and Welfare Studies, Åbo Akademi University, Strandgatan 2, 65100 Vasa, Finland
2. Faculty of Health and Welfare, Novia University of Applied Sciences, Wolffskavägen 31, 65200 Vasa, Finland
3. Faculty of Health and Social Sciences, University of South-Eastern Norway, PO 235, 3603 Kongsberg, Norway