Xiao-Dong Zhou, Qiao-Feng Chen, Yuan-Yuan Zhang, Ming-Ju Yu, Chang Zhong, Zhi-Jian Liu, Guo-Hua Li, Xiao-Jiang Zhou, Jun-Bo Hong, You-Xiang Chen, Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi Province, China
Author contributions: Zhou XD and Chen QF contributed equally to this work; Chen QF and Zhang YY designed the study and drafted the manuscript; Yu MJ collected and analyzed the data; Zhong C collected the data; Liu ZJ, Li GH, Hong JB, and Zhou XJ revised the manuscript for important intellectual content; Zhou XD and Chen YX made substantial contributions to conception, design, and coordination of the study and gave final approval of the version to be published. All authors have read and approved the final manuscript.
Institutional review board statement: This study was approved by the institutional review board of The First Affiliated Hospital of Nanchang University.
Informed consent statement: All involved persons provided written or verbal informed consent prior to study inclusion.
Conflict-of-interest statement: The authors declare that they have no conflict of interest.
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: You-Xiang Chen, MD, PhD, Chief Doctor, Professor, Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, No. 17, Yongwaizheng Street, Nanchang 330006, Jiangxi Province, China. email@example.com
Telephone: +86-13879169980 Fax: +86-791-88692505
Received: November 17, 2018
Peer-review started: November 19, 2018
First decision: November 29, 2018
Revised: December 13, 2018
Accepted: January 9, 2019
Article in press: January 10, 2019
Published online: January 28, 2019