1. Division of Clinical Pharmacology and Toxicology, University and University Hospital Basel, Switzerland
2. Division of Haematology, University Hospital Basel, Switzerland
3. Division of Clinical Pharmacology and Toxicology, University and University Hospital Basel, Switzerland, and Regional Pharmacovigilance Centre, University Hospital Basel, Switzerland
4. Centre of Primary Health Care, University of Basel, Switzerland
5. Division of Clinical Pharmacology and Toxicology, University and University Hospital Basel, Switzerland and Regional Pharmacovigilance Centre, University Hospital Basel, Switzerland