1. Department of Public Health, Nursing, Aarhus University, 8000 Aarhus C, Denmark
2. University College Diaconissestiftelsen, 2000 Frederiksberg, Denmark
3. Psychiatric Outpatient Clinic Ishøj, Bostedsteamet, 2635 Ishøj, Denmark
4. Centre for Mental Health and Substance Abuse, Department of Health, Social and Welfare Studies, Faculty of Health and Social Sciences, University of Southeastern Norway, P.O. Box 7053, 3007 Drammen, Norway