1. Academic Primary Health Care Centre, Stockholm County Council and Division of Family Medicine and Primary Care, Department of Neurobiology, Care Sciences and Society; Karolinska Institute; Huddinge Sweden
2. Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences; University of Copenhagen; Copenhagen Denmark
3. Centre for Pharmacoepidemiology, Department of Medicine Solna, Karolinska Institute; Karolinska University Hospital; Stockholm Sweden
4. Research Unit of General Practice, Department of Public Health; University of Southern Denmark; Odense Denmark
5. Public Healthcare Services Committee; Stockholm County Council; Stockholm Sweden