1. Research Unit, Angered Hospital, Gothenburg, Sweden
2. Department of Health and Rehabilitation, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
3. Administration for Allocation of Social Welfare, Gothenburg, Sweden
4. Department of Public Health and Community Medicine, School of Public Health, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
5. Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden