1. Genetics Unit, Pediatrics Service Complejo Asistencial Dr. Sótero del Río Puente Alto Chile
2. Genetics Section, Department of Medicine Hospital Clínico Universidad de Chile Santiago Chile
3. Neonatology Unit, Department of Obstetrics and Gynecology Hospital Clínico Universidad de Chile Santiago Chile
4. Department of Public Health, School of Medicine Pontificia Universidad Católica de Chile Santiago Chile
5. Department of Neurology Boston Children’s Hospital Boston Massachusetts USA
6. Neonatology Unit Complejo Hospitalario San José Santiago Chile
7. Genetics Unit, Division of Pediatrics School of Medicine, Pontificia Universidad Católica de Chile Santiago Chile