1. Department of Genetics Institute of Ophthalmology “Conde de Valenciana” Mexico City Mexico
2. “Dr. Ladislao de la Pascua” Dermatologic Center Mexico City Mexico
3. Department of Glaucoma Institute of Ophthalmology “Conde de Valenciana” Mexico City Mexico
4. Institute of Human Genetics, University Hospital Magdeburg Germany
5. Department of Genetics Hospital "Dr. Luis Sanchez Bulnes", Asociación para Evitar la Ceguera en México Mexico City Mexico
6. Department of Biochemistry, Faculty of Medicine UNAM Mexico City Mexico