1. Institute for Research in OphthalmologySion Switzerland
2. Faculty of Biology and Medicine, University of LausanneLausanne Switzerland
3. Department of GeneticsHospital “Dr. Luis Sanchez Bulnes”, Asociación Para Evitar la Ceguera en MéxicoMexico City Mexico
4. Department of GeneticsInstitute of Ophthalmology “Conde de Valenciana”Mexico City Mexico
5. Department of BiochemistryFaculty of Medicine, UNAMMexico City Mexico
6. Faculty of Life Sciences, Ecole Polytechnique Fédérale de LausanneLausanne Switzerland