1. Centre of Public Health Sciences, University of Iceland, Reykjavík, Iceland.
2. Faculty of Pharmaceutical Sciences, School of Health Sciences, University of Iceland, Reykjavík, Iceland.
3. Directorate of Health in Iceland, Seltjarnarnes, Iceland.
4. Research Centre for Pharmaceutical Outcomes and Policy, University of Iceland.
5. Department of Child and Adolescent Psychiatry, Landspitali University Hospital, Reykjavík, Iceland.
6. Science Institute, University of Iceland, Reykjavík, Iceland.