1. Department of Medical Oncology, Sun Yat-sen University Cancer Center, Guangzhou, China
2. Department of Medical Oncology, Beijing Cancer Hospital, Beijing, China
3. Department of Medical Oncology, First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
4. Department of Medical Oncology, Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China
5. Cancer Center of the First People’s Hospital of Foshan, Foshan, China
6. Department of Medical Oncology, Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
7. Cancer Center of People’s Hospital of Zhongshan, Zhongshan, China
8. Department of Hematology, Southern Hospital of Southern Medical University, Guangzhou, China
9. Department of Medical Oncology, Cancer Hospital, Shantou University Medical College, Shantou, China
10. Cancer Center of Kiang Wu Hospital, Macau, China
11. Department of Pathology, Sun Yat-sen University Cancer Center, Guangzhou, China
12. Department of Epidemiology and Biostatistics, Sun Yat-sen University Cancer Center, Guangzhou, China