Wei-Dong Fan, Department of Gastroenterology, the Affiliated Zhangjiagang Hospital of Soochow University, Zhangjiagang 215600, Jiangsu Province, China
Tao Chen, Peng-Jun Liu, Department of Gastroenterology, the Wujin Hospital Affiliated to Jiangsu University, Changzhou 213002, Jiangsu Province, China
Author contributions: Fan WD and Liu PJ designed the research; Fan WD and Chen T performed the research; Fan WD and Chen T analyzed the data; Liu PJ wrote the paper.
Institutional review board statement: This study was reviewed and approved by the Institutional Review Board of the Wujin Hospital Affiliated to Jiangsu University.
Conflict-of-interest statement: The authors declare no financial and personal relationships with other people or organizations.
Data sharing statement: No additional data are available.
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/
Corresponding author: Peng-Jun Liu, MD, Attending Doctor, Chief Doctor, Department of Gastroenterology, the Wujin Hospital Affiliated to Jiangsu University, No. 2, Yongning North Road, Changzhou 213002, Jiangsu Province, China. firstname.lastname@example.org
Telephone: +86-519-5336190 Fax: +86-519-5336190
Received: April 4, 2019
Peer-review started: April 4, 2019
First decision: April 11, 2019
Revised: April 27, 2019
Accepted: May 18, 2019
Article in press: May 18, 2019
Published online: June 21, 2019