1 Department of Neurology, University of Freiburg, Freiburg, Germany;
2 Clinic and Policlinic for Neurology,University of Rostock, Rostock, Germany;
3 Institute of Medical Biometry and Medical Informatics, University of Freiburg, Freiburg, Germany;
4 Department of Neurology, Baylor College of Medicine, Houston, TX, USA;
5 Department of Neurology, Palacky University Olomouc, Faculty of Medicine and Dentistry and University Hospital, Olomouc, Czech Republic;
6 University Eye Clinic of Bonn, Bonn, Germany;
7 Icahn School of Medicine at Mount Sinai, New York, NY, USA;
8 Rush University Medica lCenter, Chicago, IL, USA