1. Department of Genetics, Hospital Infantil de México Federico Gómez, Calle Dr. Márquez 162, Colonia Doctores Del. Cuauhtémoc, 06720 Mexico City, DF, Mexico
2. Genetics Service, Hospital General de México Dr. Eduardo Liceaga, Calle Dr. Balmis 148, 06726 Mexico City, DF, Mexico
3. Medicine Faculty, UNAM, Avenida Universidad 3000, 04510 Mexico City, DF, Mexico
4. Biogen Laboratory, Calle Dr. Vertiz 247-A, 06720 Mexico City, DF, Mexico
5. Molecular Medicine Division, CIBO, IMSS, Calle Sierra Mojada 800, 44340 Guadalajara, JAL, Mexico
6. Molecular Biology Laboratory, Science Health Faculty, Universidad Panamericana, Calle Donatello 59, 03920 Mexico City, DF, Mexico