1. From the Center for Medical Genetics and
2. Department of Ophthalmology, Queen Fabiola Children's University Hospital, Brussels, Belgium;
3. the Department of Ophthalmology, Ghent University Hospital, Ghent, Belgium;
4. the Department of Medical Genetics, University Medical Center Utrecht, Utrecht, The Netherlands;
5. the Department of Clinical Genetics, Amsterdam Medical Center, Amsterdam, The Netherlands; the 6Department of Clinical and Molecular Ophthalmogenetics, Netherlands Institute for Neuroscience, Royal Netherlands Academy of Arts and Sciences, Amsterdam, The
6. the Department of Clinical Genetics, University Hospital Maastricht, Maastricht, The Netherlands;
7. the Center for Human Genetics, University Hospitals Leuven, Leuven, Belgium;
8. the Department of Ophthalmology, University Hospitals Leuven-St.-Rafael, Leuven, Belgium;
9. the Department of Medical Genetics, University of Antwerp and University Hospital of Antwerp, Antwerp, Belgium;
10. the HUDERF (Hôpital Universitaire Des Enfants Reine Fabiola) Ophthalmology Department, Brussels, Belgium;
11. the Department of Genetics, University Medical Center Groningen, Groningen, The Netherlands;
12. the Department of Clinical Genetics, Erasmus MC Rotterdam, Rotterdam, The Netherlands; and
13. the Department of Ophthalmology, The Rotterdam Eye Hospital, Rotterdam, The Netherlands.
14. From the Center for Medical Genetics and the 3Department of Ophthalmology, Ghent University Hospital, Ghent, Belgium;