Affiliation: | Wen-Rui Xie, Harry Hua-Xiang Xia, Li-Hao Wu, Xing-Xiang He, Department of Gastroenterology, the First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou 510080, Guangdong Province, ChinaXiao-Ya Yang, Department of Physiology, Guangzhou Health Sciences College, Guangzhou 510180, Guangdong Province, China |