1 Huabin Hu, MD and Jianwei Zhang, MD, Department of Medical Oncology, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China, Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, Guangzhou, People's Republic of China, and Biomedical Innovation Center, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China; Lishuo Shi, PhD, Clinical Research Center, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China; Meijin Huang, MD and Jianping Wang, MD, Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, Guangzhou, People's Republic of China, Biomedical Innovation Center, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China, Department of General Surgery, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China; and Yanhong Deng, MD, PhD, Department of Medical Oncology, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China, Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, Guangzhou, People's Republic of China, and Biomedical Innovation Center, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China.