1. Laboratory of Biochemistry and Molecular Biology, Ningbo University, Ningbo 315211, China
2. Ningbo Branch of National Engineering Research Center for Beijing Biochip Technology, Ningbo 315201, China
3. Department of Gastroenterology, the First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310003, China
4. Clinical Research Center, Ningbo No. 2 Hospital, Ningbo 315010, China
5. Department of Gastroenterology, Ningbo No. 1 Hospital, Ningbo 315010, China