1. University of Bayreuth, Institute for Healthcare Management and Health Sciences, Bayreuth, Germany
2. Max Rubner-Institute, Kulmbach, Germany
3. University of Bayreuth, Chair of Healthcare Management and Health Services Research, Bayreuth, Germany
4. Ludwig-Maximilians-University of Munich, Friedrich-Baur-Institute, Department of Neurology, Munich, Germany
5. Department of Neurology, Hannover Medical School, Hannover, Germany