1. Hanusch Hospital; Department of Ophthalmology; Heinrich-Collin-Strasse 30 Vienna Austria A-1140
2. Medical University of Vienna; Department of Ophthalmology; Währinger Gürtel 18-20 Vienna Austria 1090
3. Medical University of Vienna; Institute of Medical Statistics; Spitalgasse23 Vienna Austria A-1090
4. Medical University of Vienna; Department of Neurology; Währinger Gürtel 18-20 Vienna Austria A-1090