Omar A Masri, Jean M Chalhoub, Ala I Sharara, Division of Gastroenterology, Department of Internal Medicine, American University of Beirut Medical Center, Beirut 11-0236, Lebanon
Author contributions: Masri OA performed research, completed the review, drafted the manuscript and prepared the tables; Masri OA, Chalhoub JM and Sharara AI interpreted the data and critically reviewed the manuscript; Masri OA and Chalhoub JM did the final editing of the manuscript; Chalhoub JM executed the figures, and managed references; Sharara AI designed the research.
Conflict-of-interest: No potential conflicts of interest relevant to this article were reported.
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: Ala I Sharara, MD, FACG, AGAF, Professor, Head, Division of Gastroenterology, Department of Internal Medicine, American University of Beirut Medical Center, Cairo Street, Beirut 11-0236, Lebanon. firstname.lastname@example.org
Telephone: +961-1-35000 Fax: +961-1-366098
Received: January 8, 2015
Peer-review started: January 9, 2015
First decision: February 10, 2015
Revised: February 23, 2015
Accepted: March 31, 2015
Article in press: March 31, 2015
Published online: May 7, 2015