| Affiliation: | 1. State Key Laboratory of Oncology in Southern China and Department of Experimental Research, Sun Yat-sen University Cancer Center, Guangzhou, P.R. China.; 2. Department of Gastroenterology, the Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, P.R. China.; 3. Department of Biotherapy Center, Sun Yat-sen University Cancer Center, Guangzhou, P.R. China.; 4. Department of Endoscopy, Sun Yat-sen University Cancer Center, Guangzhou, P.R. China.; The University of Hong Kong, China, |
