1. Department of Medical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
2. Department of Radiation Oncology, Cancer Center, West China Hospital of Sichuan University, Chengdu, China
3. Department of Medical Oncology, Chengdu Shangjinnanfu Hospital, West China Hospital of Sichuan University, Chengdu, China