1. Department of Gastroenterology, Jintan Hospital Affiliated to Jiangsu University, Jintan 213200, P.R. China
2. School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, China
3. School of Pharmacy, Jiangsu University, Zhenjiang 212013, P.R. China
4. Department of Central Laboratory, Jintan Hospital Affiliated to Jiangsu University, Jintan 213200, P.R. China