1. From the Molecular Genetics Laboratory, Institute for Ophthalmic Research, Centre for Ophthalmology, University Clinics Tu¨bingen, Germany; the
2. University Eye Hospital, Centre for Ophthalmology, University Clinics Tu¨bingen, Germany;
3. The Wilhelm Johannsen Centre for Functional Genome Research, Department of Cellular and Molecular Medicine, University of Copenhagen, Denmark; the
4. University Eye Hospital, Munich, Germany; the
5. Department of Medical Genetics, Institute for Human Genetics, University Tu¨bingen, Germany; and the
6. Gordon Norrie Centre for Genetic Eye Diseases, Kennedy Institute–National Eye Clinic, Hellerup, Denmark.