Francesco Feroci, Andrea Vannucchi, Stefano Cantafio, Alessia Garzi, Marco Scatizzi, Department of General and Oncological Surgery, Santo Stefano Hospital, 59100 Prato, Italy
Paolo Pietro Bianchi, Giampaolo Formisano, Department of General and Minimally Invasive Surgery, Misericordia Hospital, 58100 Grosseto, Italy
Author contributions: Feroci F and Vannucchi A contributed equally to this work; Feroci F and Vannucchi A designed the research, analyzed the data and drafted the manuscript; Bianchi PP and Cantafio S made an important critical revision; Garzi A and Formisano G made the acquisition of data; Scatizzi M contributed to the conception and design of the study and made the final approval; all authors have approved the final version of the article.
Institutional review board statement: This study was reviewed and approved by the Ethics Committee of the Santo Stefano Hospital, Prato, Italy and of the Misericordia Hospital, Grosseto, Italy.
Informed consent statement: The IRB allowed us to waive the requirement for obtaining informed consent to the study because the analysis used anonymous clinical data that were obtained after each patient agreed to have imaging study by written consent.
Conflict-of-interest statement: We have no financial relationships to disclose.
Data sharing statement: Statistical analysis and dataset are available from the corresponding author at firstname.lastname@example.org.
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: Francesco Feroci, MD, Department of General and Oncological Surgery, Santo Stefano Hospital, Via Suor Niccolina 20, 59100 Prato, Italy. email@example.com
Received: December 16, 2015
Peer-review started: December 19, 2015
First decision: January 13, 2016
Revised: January 27, 2016
Accepted: February 22, 2016
Article in press: February 22, 2016
Published online: April 7, 2016