1. Department of Internal Medicine, Ryhov; Jonkoping, Sweden
2. Hospital Pharmacy, Ryhov; Jonkoping, Sweden
3. Jönköping County Hospital Ryhov; the Departments of Clinical Pharmacology and Community Health Sciences, Ryhov; Jonkoping, Sweden
4. University of Lund, Malmö; the Swedish Institute for Health Economics, Jonkoping, Sweden
5. Lund; and the Western Swedish Regional Unit of the Swedish Board of Health and Welfare, Jonkoping, Sweden