1. Department of Cardiovascular and Thoracic Surgery, 2nd Xiangya Hospital, Central South University, Changsha, China and Division of Gastroenterology, Southwest Hospital, 3rd Military Medical University, Chongqing, China and Cancer Research Program, Biology and Biomedical Research Institution, North Carolina Central University, Durham, U.S.A.
2. Division of Gastroenterology, Southwest Hospital, 3rd Military Medical University, Chongqing, China
3. Department of Cardiovascular and Thoracic Surgery, 2nd Xiangya Hospital, Central South University, Changsha, China