1. Department of Psychiatry, Satakunta Hospital District, Talvitie 7, 29200 Harjavalta, Finland
2. University of Tampere, School of Health Sciences, 33014 Tampere, Finland
3. University of Eastern Finland, Käsityöläisentie 18 S 67, 00750 Helsinki, Finland
4. University of Tampere, School of Health Sciences, Nursing Science/Etelä-Pohjanmaa Hospital District, 33014 Tampere, Finland