Yue Li, Lei Li, Hui-Guo Ding, Department of Gastroenterology and Hepatology, Beijing You’an Hospital Affiliated with Capital Medical University, Beijing 100069, China
Hong-Lei Weng, Department of Medicine II, Section Molecular Hepatology, Medical Faculty Mannheim, Heidelberg University, Mannheim 68167, Germany
Roman Liebe, Department of Medicine II, Saarland University Medical Center, Homburg 66424, Germany
Author contributions: Li Y and Li L contributed equally to collecting the data and writing the manuscript; Ding HG designed the project and was in charge of the manuscript; Weng HL and Liebe R performed the language editing; all authors have read and approved the manuscript.
Supported by the State Key Projects Specialized on Infectious Diseases, No. 2017ZX10203202–004; Beijing Municipal Administration of Hospitals Clinical Medicine Development of Special Funding, No. ZYLX201610; Beijing Municipal Administration of Hospitals’ Ascent Plan, No. DFL20151602; and Digestive Medical Coordinated Development Center of Beijing Hospitals Authority, No. XXT24.
Conflict-of-interest statement: The authors deny any conflict of interest.
PRISMA 2009 Checklist statement: The authors have read the PRISMA 2009 Checklist, and the manuscript was prepared and revised according to the PRISMA 2009 Checklist.
Open-Access: This article is an open-access article that was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution NonCommercial (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: Hui-Guo Ding, MD, PhD, Chief Doctor, Chief Physician, Professor, Department of Gastroenterology and Hepatology, Beijing You’an Hospital affiliated with Capital Medical University, 8 Xitoutiao, Youanmenwai, Fengtai District, Beijing 100069, China. email@example.com
Received: February 13, 2020
Peer-review started: February 13, 2020
First decision: March 15, 2020
Revised: March 19, 2020
Accepted: April 24, 2020
Article in press: April 24, 2020
Published online: May 14, 2020