1. Department of Ophthalmology, Erasmus Medical Center, Rotterdam, the Netherlands
2. Department of Clinical Genetics, Erasmus Medical Center, Rotterdam, the Netherlands
3. Department of Epidemiology, Erasmus Medical Center, Rotterdam, the Netherlands
4. Department of Ophthalmology, Radboud University Medical Center, Nijmegen, the Netherlands
5. Institute of Molecular and Clinical Ophthalmology Basel, Basel, Switzerland