1. Department of Minimally Invasive Interventional Therapy Sun Yat‐sen University Cancer Center Guangzhou 510060 P. R. China
2. State Key Laboratory of Oncology in South China Collaborative Innovation Center of Cancer Medicine Sun Yat‐sen University Guangzhou 510060 P. R. China
3. Department of Pathology Sun Yat‐sen University Cancer Center Guangzhou 510060 P. R. China
4. Department of Medical Oncology Seventh Affiliated Hospital of Sun Yat‐sen University Shenzhen 518107 P. R. China
5. Zhong Shan School of Medicine Sun Yat‐sen University Guangzhou 510080 P. R. China
6. Department of Biological Therapy Center Sun Yat‐sen University Cancer Center Guangzhou 510060 P. R. China