1. From the Department of Ophthalmology, University of Valladolid, IOBA (Institute for Research in Ophthalmobiology), Valladolid, Spain;
2. Department of Statistics, Ciber BBN (Centro de Investigacio´n Biome´dica en Red–Bioengineering, Biomaterials and Nanomedicine); and
3. Complexo Hospitalario,
4. Centro Nacional de Genotipado (CeGen), and
5. Department of Ophthalmology, Clinic University Hospital of Valladolid, Valladolid, Spain.
6. Fundacion Galega de Medicina Xenomica, CIBERER (Centro de Investigacio´n Biome´dica en Red Enfermedades Raras), University of Santiago de Compostela, Santiago, Spain; and the