Institution: | Hong Niu, Department of Gastroenterology, Jincheng General Hospital, Jincheng 048000, Shanxi Province, ChinaFei Liu, Department of General Surgery, Jincheng General Hospital, Jincheng 048000, Shanxi Province, ChinaYi-Bo Tian, Department of Emergency, Jincheng General Hospital, Jincheng 048000, Shanxi Province, China |