1 Center for Research and Training in Neurosurgery (CIEN), Bogotá, Colombia.
2 Universidad del Rosario School of Medicine and Health Sciences, Bogotá, Colombia.
3 Department of Neurosurgery, Hospital Universitario de la Samaritana, Bogotá, Colombia.
4 Department of Neurosurgery, Hospital Universitario Mayor-Mederi, Bogotá, Colombia.
5 Center for Research and Training in Neurosurgery (CIEN), Bogotá, Colombia. javiermsaavedra@gmail.com.
6 Department of Neurosurgery, Hospital Universitario de la Samaritana, Bogotá, Colombia. javiermsaavedra@gmail.com.
7 Department of Neurosurgery, Hospital Universitario Mayor-Mederi, Bogotá, Colombia. javiermsaavedra@gmail.com.
8 Universidad del Rosario School of Medicine and Health Sciences, Bogotá, Colombia. javiermsaavedra@gmail.com.
9 Neurosurgery Department, Center for Research and Training in Neurosurgery (CIEN), Hospital Universitario Mayor-Méderi, Universidad del Rosario School of Medicine and Health Sciences, Carrera 8 No. 0-29 Sur, Bogotá, Colombia. javiermsaavedra@gmail.com.