1. Division of Endocrinology, Diabetes, and Metabolism, University Hospital Basel, Basel, Switzerland
2. Hospital Pharmacy, University Hospital Basel, Basel, Switzerland
3. Basel Pharmacoepidemiology Unit, Division of Clinical Pharmacy and Epidemiology, Department of Pharmaceutical Sciences, University of Basel, Basel, Switzerland
4. Boston Collaborative Drug Surveillance Program, Lexington, Massachusetts
5. Boston University School of Public Health, Boston University School of Medicine, Lexington, Massachusetts