Dimitrios Karakaxas, Christos Dervenis, Department of General Surgery, Agia Olga Hospital, 14233 Athens, Greece
Anna Sioziou, Maria Gazouli, Department of Basic Medical Sciences, Laboratory of Biology, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece
Gerasimos Aravantinos, Second Department of Medical Oncology, Agioi Anargiroi Cancer Hospital, Κifisia, 14564 Athens, Greece
Ahmet Coker, Department of General Surgery, Ege University School of Medicine, 35040 Izmir, Turkey
Ioannis S Papanikolaou, Hepatogastroenterology Unit, 2nd Department of Internal Medicine and Research Unit, Attikon University General Hospital, Medical School, National and Kapodistrian University of Athens, 12462 Athens, Greece
Theodoros Liakakos, 1st Department of Surgery, Laiko Athens General Hospital, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece
Author contributions: Karakaxas D, Aravantinos G, Coker A, Papanikolaou IS, Liakakos T and Dervenis C collected the samples and the patients data; Karakaxas D, Sioziou A and Gazouli M performed the experiments; Liakakos T, Dervenis C and Gazouli M designed the study, wrote and corrected the manuscript.
Supported by Hellenic Society of Medical Oncology, No. 5839/08-04-2015.
Institutional review board statement: The study was approved by the ethics committee of Attikon Hospital.
Informed consent statement: All patients gave informed consent.
Conflict-of-interest statement: All authors do not have any conflict-of interest to declare.
Data sharing statement: Technical appendix, statistical code, and dataset 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: Maria Gazouli, PhD, Assistant Professor of Molecular Biology, Department of Basic Medical Sciences, Laboratory of Biology, Medical School, National and Kapodistrian University of Athens, Michalakopoulou 176, 11527 Athens, Greece. email@example.com
Telephone: +30-210-7462231 Fax: +30-210-7462231
Received: February 11, 2016
Peer-review started: February 14, 2016
First decision: March 1, 2016
Revised: March 1, 2016
Accepted: March 17, 2016
Article in press: March 17, 2016
Published online: June 15, 2016