1. Karl Landsteiner Institute for Retinal Research and Imaging, Vienna, Austria
2. Department of Ophthalmology, Rudolf Foundation Hospital, Juchgasse 25, Vienna 1030, Austria
3. Center for Medical Statistics, Informatics, and Intelligent Systems, Medical University of Vienna, Spitalgasse 23, Vienna 1090, Austria
4. Department of Ophthalmology, Medical University of Graz, Auenbruggerplatz 1, Graz 8036, Austria