1. Department of Neurology and Wilhelm Sander-NeuroOncology Unit, Regensburg University Hospital, Regensburg, Germany
2. Basel Pharmacoepidemiology Unit, Division of CIinical Pharmacy and Epidemiology, Department of Pharmaceutical Sciences, University of Basel, Basel, Switzerland
3. Boston Collaborative Drug Surveillance Program, Boston University School of Public Health, Boston University, MA, USA
4. Hospital Pharmacy, University Hospital Basel, Basel, Switzerland
5. Department of Neurosurgery, Regensburg University Hospital, Regensburg, Germany
6. Department of Epidemiology and Preventive Medicine, University of Regensburg, Regensburg, Germany