Affiliation: | 1 Department of Gastroenterology, First People''s Hospital, Shanghai Jiaotong University, School of Medicine, Shanghai, China;2 Department of Gastroenterology, Central Hospital, Songjiang District, Shanghai, China;3 College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, China;4 Department of General Surgery, First People''s Hospital, Shanghai Jiaotong University, School of Medicine, Shanghai, China |