Chilean Journal of Neurosurgery is owned by the Society of Neurosurgery of Chile and / or Chilean Society of Neurosurgery, which is the official representative of the neurosurgeons of Chile before the Latin American Federation of Neurosurgical Societies (FLANC), and the World Federation of Neurosurgical Societies (WFNS). All correspondence to the Editor should be addressed to emails: [email protected] or [email protected]. The Chilean Journal of Neurosurgery shares opinions and criteria published here, these being the sole responsibility of the authors.