1. Eye Center; University of Freiburg; Freiburg Germany
2. Department of Pharmacology and Toxicology; University of Regensburg; Regensburg Germany
3. Department of Ophthalmology; University Medical Center Göttingen; Göttingen Germany
4. University Eye Hospital; Hannover Medical School; Hannover Germany
5. University Eye Hospital; Eberhard-Karl University Tübingen; Tübingen Germany
6. University Eye Hospital; University of Oldenburg; Oldenburg Germany
7. Department of Ophthalmology; HELIOS Klinikum Berlin-Buch; Berlin Germany
8. Department of Ophthalmology; University of Muenster Medical Center; Muenster Germany
9. Department of Ophthalmology; University Medical Center Hamburg-Eppendorf; Hamburg Germany
10. Department of Ophthalmology; Vivantes Klinikum Neukölln; Berlin Germany
11. Department of Ophthalmology; University of Bonn; Bonn Germany