Ahmet Deniz Uçar, Nazif Erkan, Mehmet Yıldırım, Department of General Surgery, Izmir Bozyaka Educational and Research Hospital, 35320 Narlidere, Izmir, Turkey
Author contributions: Uçar AD, Erkan N and Yıldırım M contributed equally to this work, generated the figures and wrote the manuscript.
Conflict-of-interest: There is no conflict of interest to be stated.
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: Ahmet Deniz Uçar, MD, Department of General Surgery, Izmir Bozyaka Educational and Research Hospital, Ilica Mah. Alkan Sk. Yurttas Apt. No:25 D:3, 35320 Narlidere, Izmir, Turkey. firstname.lastname@example.org
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Received: July 19, 2014
Peer-review started: July 19, 2014
First decision: November 18, 2014
Revised: December 5, 2014
Accepted: December 18, 2014
Article in press: December 19, 2014
Published online: March 28, 2015