1. University Institute of Internal Medicine, Cantonal Hospital Baselland, Rheinstrasse 26, 4410 Liestal, Switzerland
2. Faculty of Medicine, University of Basel, Klingelbergstrasse 61, 4056 Basel, Switzerland
3. Department of Gynaecology and Obstetrics, Cantonal Hospital Baselland, Rheinstrasse 26, 4410 Liestal, Switzerland
4. Hospital Pharmacy, Cantonal Hospital Baselland, Rheinstrasse 26, 4410 Liestal, Switzerland
5. Department of Patient Safety, Medical Directorate, University Hospital Basel, Schanzenstrasse 55, 4056 Basel, Switzerland