*Shanghai Institute of Digestive Disease, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, † Department of Gastroenterology, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, ‡ Clinical Center for Hepatology, No. 85 Army Hospital, Shanghai, § Department of Gastroenterology, Shanghai First People's Hospital, Jiaotong University, Shanghai, ¶ Department of Gastroenterology, First Affiliated Hospital, China Medical University, Shenyang, China
Correspondence to: Min De ZENG, Shanghai Institute of Digestive Disease, Renji Hospital, Shanghai 200001, Shanghai Jiaotong University School of Medicine, Shanghai, China. Email:
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