1. Department of Ophthalmology, University of Bonn, Bonn, Germany
2. Institute for Medical Biometry, Informatics and Epidemiology, University of Bonn, Bonn, Germany
3. The Lowy Medical Research Institute, La Jolla, California, United States
4. Department of Molecular Medicine, The Scripps Research Institute, La Jolla, California, United States
5. Department of Ophthalmology, Gloucestershire Hospital NHS Foundation Trust, Cheltenham, United Kingdom