1. Unit of Neurology; Dept. of Pediatrics; Clínica Las Condes; Santiago Chile
2. Laboratory of Molecular Medicine; Bambino Gesu Children's Hospital IRCCS; Rome Italy
3. Laboratory of Molecular Genetics and Oncology; Clínica Las Condes; Santiago Chile
4. Dept. of Pathology; Clínica Las Condes; Santiago Chile
5. Dept. of Traumatology; Clínica Las Condes; Santiago Chile
6. Dept. of Radiology; Clínica Las Condes; Santiago Chile
7. Dep. de Neurología y Neurocirugía; Hospital Clínico Universidad de Chile; Santiago Chile