1 Department of General Surgery, Shanghai First People's Hospital, Shanghai Jiao Tong University, 100 Haining Road, Shanghai, 200080, China.
2 Department of Neurology, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China.
3 Department of Gastroenterology, Tianyou Hospital, TongJi University, 500 Zhennan Road, Shanghai, 200331, China.
4 Department of Gastroenterology, Shanghai First People's Hospital, Shanghai Jiao Tong University, 100 Haining Road, Shanghai, 200080, China.
5 Department of Gastroenterology, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China. meizhe_chuan@163.com.
6 Department of General Surgery, Shanghai First People's Hospital, Shanghai Jiao Tong University, 100 Haining Road, Shanghai, 200080, China. xingsun15@163.com.