1 Department of Gastroenterology, Key Laboratory of Hubei Province for Digestive System Disease, and Hubei Provincial Clinical Research Center for Digestive Disease Minimally Invasive Incision, Renmin Hospital of Wuhan University, Wuhan, China.
2 Department of Gastroenterology, St Vincent's Hospital Melbourne, University of Melbourne, Australia.
3 Department of Gastroenterology, Key Laboratory of Hubei Province for Digestive System Disease, and Hubei Provincial Clinical Research Center for Digestive Disease Minimally Invasive Incision, Renmin Hospital of Wuhan University, Wuhan, China; Infection Control Department, Renmin Hospital of Wuhan University, Wuhan, China.
4 Department of Respiratory Medicine, Renmin Hospital of Wuhan University, Wuhan, China.
5 Department of Gastroenterology, Key Laboratory of Hubei Province for Digestive System Disease, and Hubei Provincial Clinical Research Center for Digestive Disease Minimally Invasive Incision, Renmin Hospital of Wuhan University, Wuhan, China. Electronic address: dingyijuan88@163.com.