1. Department of Gastroenterology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, Jiangsu 210008, People’s Republic of China
2. State Key Laboratory of Pharmaceutical Biotechnology, Chemistry and Biomedicine Innovation Center, Medical School of Nanjing University, Nanjing, Jiangsu 210093, People’s Republic of China
3. Jiangsu Key Laboratory for Nano Technology, Nanjing University, Nanjing, Jiangsu 210093, People’s Republic of China
4. Wuxi No. 2 People’s Hospital, Wuxi, Jiangsu 214002, People’s Republic of China