1. From the Institute of Human Genetics and the
2. Department of Ophthalmology, Friedrich-Alexander-University Erlangen-Nuremberg, Erlangen, Germany; the
3. Azienda Ospedaliera di Monfalcone, Reparto di Oftalmologia, Monfalcone, Italy; and the
4. Institute of Human Genetics, University of Regensburg, Regensburg, Germany.