Ya-Hui Ma, Jie Zhang, Xue Chen, You-Fu Xie, Yan-Hua Pang, Xin-Juan Liu
Ya-Hui Ma, Jie Zhang, Xue Chen, Department of Gastroenterology, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
You-Fu Xie, Yan-Hua Pang, Xin-Juan Liu, Department of Gastroenterology, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
Author contributions: Ma YH and Zhang J contributed equally to this work; Ma YH, Zhang J performed the research and wrote the manuscript; Chen X, Xie YF, Pang YH analyzed the data; Liu XJ designed the research; all authors have read and approved the final version to be published.
Supported by the National Natural Science Foundation of China, No. 81300294; and State Scholarship Fund of China, No. 201509110033.
Institutional review board statement: The study was reviewed and Supported by Beijing Chaoyang Hospital, Capital Medical University Institutional Review Board.
Institutional animal care and use committee statement: All procedures involving animals were reviewed and approved by the Institutional Animal Care and Use Committee of the Beijing Chaoyang Hospital, Capital Medical University.
Conflict-of-interest statement: We declare that we have no financial and personal relationships with other people or organizations that can inappropriately influence our work. There is no professional or other personal interest of any nature or kind in any product, service and/or company that could be construed as influencing the position presented in, or the review of the manuscript.
Data sharing statement: No additional unpublished data are available.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/
Correspondence to: Xin-Juan Liu, PhD, MD, Department of Gastroenterology, Beijing Chaoyang Hospital, Capital Medical University, Chaoyang District, Beijing 100020, China. lxjw2012@126.com
Telephone: +86-10-85231714
Received: May 10, 2016
Peer-review started: May 11, 2016
First decision: July 13, 2016
Revised: August 5, 2016
Accepted: August 19, 2016
Article in press: August 19, 2016
Published online: November 14, 2016
