Sheikh Hasibur Rahman, Robin Urquhart, Department of Surgery, Dalhousie University, Halifax B3H 2Y9, Nova Scotia, Canada
Michele Molinari, Department of Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA 15213, United States
Author contributions: Rahman SH participated in the concept, design and search of the scientific literature, extracted the data and wrote the manuscript including the tables; Urquhart R participated in the concept and design and participated in revising the manuscript; Molinari M formulated the research question, designed the literature search, supervised and co-authored the manuscript with Rahman SH.
Conflict-of-interest statement: The authors certify that they have no affiliations with or involvement in any organization or entity with any financial interest (such as honoraria; educational grants; participation in speakers’ bureaus; membership, employment, consultancies, stock ownership, or other equity interest; and expert testimony or patent-licensing arrangements), or non-financial interest (such as personal or professional relationships, affiliations, knowledge or beliefs) in the subject matter or materials discussed in this 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: Michele Molinari, MD, MSc, Senior Scientist, Surgeon, Associate Professor, Department of Surgery, University of Pittsburgh Medical Center, 3459 Fifth Avenue, N758, Pittsburgh, PA 15213, United States. firstname.lastname@example.org
Telephone: +1-412-6475734 Fax: +1-412-6475736
Received: June 25, 2017
Peer-review started: June 27, 2017
First decision: August 7, 2017
Revised: August 24, 2017
Accepted: September 15, 2017
Article in press: September 15, 2017
Published online: December 15, 2017