1. From the Departments of Ophthalmology,2Human Genetics, and
2. From the Departments of Ophthalmology,
3. Human Genetics, and
4. Human Genetics, and3Otorhinolaryngology, University Medical Center Nijmegen, Nijmegen, The Netherlands.
5. Otorhinolaryngology, University Medical Center Nijmegen, Nijmegen, The Netherlands.