1. Department of Public Health Sciences, Karolinska Institutet, Stockholm, Sweden
2. Department of Clinical Neuroscience, Karolinska Institutet, Sweden
3. Institution of Health Sciences, Linköping University, Sweden
4. Nordic School of Public Health NHV, Sweden
5. Nordic Health Economics, Gothenburg, Sweden
6. Department of Public Health and Community Medicine, Sahlgrenska Academy at University of Gothenburg,Gothenburg, Sweden