1. Pediatric Neurosurgery Unit, Instituto Nacional de Salud del Niño, San Borja, Lima, Perú
2. Department of Surgery, Neurosurgery Service, Hospital Nacional Alberto Sabogal Sologuren-EsSalud, Callao, Lima, Perú
3. Department of Neurosurgery, Endovascular Neurosurgery Division, Hospital Nacional Guillermo Almenara Irigoyen-EsSalud, La Victoria, Lima, Perú
4. Interventional Neurosurgery Division, Clínica Angloamericana, San Isidro, Lima, Perú