1. Department of Gastroenterology, Key Laboratory of Hubei Province for Digestive System Disease, Renmin Hospital of Wuhan University , Wuhan , China
2. Department of Gastroenterology, Guizhou Provincial People's Hospital , Guiyang City , Guizhou Province , China
3. NHC Key Laboratory of Pulmonary Immune-related Disease, Guizhou Provincial People’s Hospital , Guiyang City , Guizhou Province , China