1. Department of General Surgery, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
2. Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
3. Department of Traditional Chinese Medicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
4. Department of Radiology, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
5. State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
6. Department of Ultrasound, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China