Department of Gastroenterology, First Affiliated Hospital of Anhui Medical University, Key Laboratory of Digestive Disease of Anhui Province, Hefei 230022, China;
Department of Gastroenterology, First Affiliated Hospital of Anhui Medical University, Key Laboratory of Digestive Disease of Anhui Province, Hefei 230022, China;
Department of Gastroenterology, First Affiliated Hospital of Anhui Medical University, Key Laboratory of Digestive Disease of Anhui Province, Hefei 230022, China;
Department of Gastroenterology, First Affiliated Hospital of Anhui Medical University, Key Laboratory of Digestive Disease of Anhui Province, Hefei 230022, China;