1. Department of Gastroenterology The Fourth Affiliated Hospital of Zhejiang University School of Medicine Yiwu Zhejiang 322000 China
2. School of Pharmacy Hangzhou Normal University Hangzhou 311200 China
3. Department of Pharmacy Affiliated Xiaoshan Hospital Hangzhou Normal University Hangzhou 311200 China
4. Department of Pharmacy Sir Run Run Shaw Hospital School of Medicine Zhejiang University Hangzhou 310016 China
5. Department of Gastroenterology Affiliated Xiaoshan Hospital Hangzhou Normal University Hangzhou 311200 China
6. Department of Proctology Second People's Hospital of Haining City Haining Zhejiang 314400 China