Rosa M Jimenez Rodriguez, Mercedes Flores-Cortés, Francisco López-Bernal, Cristobalina Martín, Verónica Pino Diaz, Felipe Pareja Ciuro, Javier Padillo Ruiz, Department of Surgery, Hospital Universitario Virgen del Rocío, 41013 Sevilla, Spain
Juan José Segura-Sampedro, Hospital Universitario Son Espases, 07010 Palma de Mallorca, Spain
Author contributions: All authors were responsible for conceptualizing and designing the study; collecting, analysing and interpreting the data and drafting the manuscript; all authors gave their approval on the final version for publication.
Conflict-of-interest statement: The authors have no conflict of interest related to the manuscript.
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: Rosa M Jimenez-Rodriguez, MD, PhD, EBSQ-c, Colorectal Unit, Department of Surgery, Hospital Universitario Virgen del Rocío, 41013 Sevilla, Spain. email@example.com
Telephone: +34-606-296081 Fax: +34-955-012313
Received: October 4, 2015
Peer-review started: October 5, 2015
First decision: November 27, 2015
Revised: December 24, 2015
Accepted: January 11, 2016
Article in press: January 11, 2016
Published online: March 7, 2016