1. Clinical Pharmacology; Institute of Public Health; University of Southern Denmark; Odense Denmark
2. Data Deliveries and Medicinal Products Statistics; Sector for National Health Surveillance and Research; Statens Serum Institut; Copenhagen Denmark
3. Solvang Child and Adolescent Psychiatry; Private Practice; Højbjerg Denmark
4. Centre of Public Health Sciences; Faculty of Medicine; University of Iceland; Reykjavík Iceland