Nicola Marotta, Cristina Mancarella, Davide Colistra, Alessandro Landi, Demo Eugenio Dugoni, Roberto Delfini, Department of Neurology and Psychiatry, Division of Neurosurgery, University of Rome “Sapienza”, 00161 Rome, Italy
Author contributions: All the authors contributed to this manuscript.
Institutional review board statement: The study was reviewed and approved by the Department of Neurology and Psychiatry, Division of Neurosurgery, University of Rome “Sapienza” Institutional review board.
Informed consent statement: The study participant provided informed verbal consent prior to study enrollment.
Conflict-of-interest statement: The authors declare no conflicts of interest.
Open-Access: This article is an open-access article which was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/
Correspondence to: Alessandro Landi, MD, PhD, Department of Neurology and Psychiatry, Division of Neurosurgery, University of Rome “Sapienza”, Viale del Policlinico 155, 00161 Rome, Italy. firstname.lastname@example.org
Telephone: +39-6-49979105 Fax: +39-6-49979105
Received: February 11, 2015
Peer-review started: February 12, 2015
First decision: May 13, 2015
Revised: May 30, 2015
Accepted: August 30, 2015
Article in press: August 31, 2015
Published online: November 16, 2015