Sara Monteiro, Tiago Cúrdia Gonçalves, Joana Magalhães, José Cotter, Department of Gastroenterology, Hospital Senhora da Oliveira-Guimarães, Creixomil, 4835-044 Guimarães, Portugal
José Cotter, Life and Health Sciences Research Institute (ICVS), School of Health Sciences, ICVS/3B’s Associate Laboratory, University of Minho, Campus de Gualtar, 4835-044 Braga/Guimarães, Portugal
Author contributions: Monteiro S performed the literature search; Monteiro S, Gonçalves TC and Magalhães J wrote the paper; Cotter J designed and conducted the manuscript, critically revised the paper and finally approved the version to be submitted. All authors read and approved the final paper.
Conflict-of-interest statement: The authors have no conflict of interest to disclose.
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: Sara Monteiro, MD, Department of Gastroenterology, Hospital Senhora da Oliveira-Guimarães, Rua dos Cutileiros, Creixomil, 4835-044 Guimarães, Portugal. email@example.com
Telephone: +351-25-3540330 Fax: +351-25-3513592
Received: June 26, 2015
Peer-review started: June 26, 2015
First decision: August 3, 2015
Revised: October 14, 2015
Accepted: December 9, 2015
Article in press: December 11, 2015
Published online: February 15, 2016