1. Department of Ophthalmology, University Medical Centre Utrecht, Utrecht, the Netherlands
2. Department of Neuro-Oncology, Erasmus Medical Centre, Rotterdam, the Netherlands
3. Department of Ophthalmology, Pitié-Salpêtrière Hospital, Paris, France
4. Department of Ophthalmology, Tübingen University Hospital, Tübingen, Germany
5. Rotterdam Eye Hospital, Rotterdam, the Netherlands
6. Department of Ophthalmology, Radboud Medical Centre, Nijmegen, the Netherlands
7. Department of Ophthalmology, Uveitis Unit, University Hospital of León, León, Spain
8. Moorfields Eye Hospital, London, England
9. Department of Ophthalmology, Heidelberg University Hospital, Heidelberg, Germany
10. Department of Ophthalmology, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
11. Department of Ophthalmology, University of Lausanne, Jules-Gonin Eye Hospital, Lausanne, Switzerland
12. Department of Ophthalmology, University Medical Center, Groningen, the Netherlands13W. J. Kolff Institute, Graduate School of Medical Sciences, University of Groningen, Groningen, the Netherlands
13. Department of Ophthalmology, Leiden University Medical Centre, Leiden, the Netherlands
14. Bristol Eye Hospital, Bristol, England
15. Department of Ophthalmology, Centre Hospitalier Universitaire St-Pierre and Brugmann, Université Libre de Bruxelles, Bruxelles, Belgium
16. Department of Ophthalmology, University Medical Centre, Maastricht, the Netherlands
17. Department of Ophthalmology, Amsterdam Medical Centre, Amsterdam, the Netherlands
18. Department of Hematology, University Medical Centre Utrecht, Utrecht, the Netherlands
19. Department of Ophthalmology, Erasmus Medical Centre, Rotterdam, the Netherlands