Institution: | 1. Centre of Public Health Sciences, Faculty of Medicine, University of Iceland, , Reykjavík, Iceland;2. Clinical Pharmacology, Institute of Public Health, University of Southern Denmark, , Odense, Denmark;3. Department of Clinical Chemistry & Pharmacology, Odense University Hospital, , Odense, Denmark;4. Department of Psychiatry, Landspitali University Hospital, , Reykjavík, Iceland |