1. Department of Neurology, Odense University Hospital, Odense, Denmark2Department of Clinical Research, Faculty of Health Sciences, University of Southern Denmark, Odense
2. Centro Español Investigatión Farmacoepidemiológica, Madrid, Spain
3. Clinical Pharmacology, Department of Public Health, University of Southern Denmark, Odense
4. Department of Clinical Research, Faculty of Health Sciences, University of Southern Denmark, Odense5Department of Neurosurgery, Odense University Hospital, Odense, Denmark
5. Department of Neurosurgery, Odense University Hospital, Odense, Denmark