1. Department of Human Genetics, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands
2. Institute for Genetic and Metabolic Disease, Nijmegen, The Netherlands
3. Department of Ophthalmology, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands
4. Nijmegen Centre for Molecular Life Sciences, Nijmegen, The Netherlands
5. Rotterdam Eye Hospital, Rotterdam, The Netherlands
6. Augen Zentrum Siegburg, Siegburg, Germany
7. Department of Ophthalmology and Visual Sciences, University of Michigan, Ann Arbor, Michigan