1. 1Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai Medical College of Fudan University, Shanghai, China.
2. 2Cancer Institute, Fudan University Shanghai Cancer Center, Shanghai Medical College of Fudan University, Shanghai, China.
3. 3Department of Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China.
4. 4Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai Medical College of Fudan University, Shanghai, China.
5. 5Department of Head and Neck Surgery, Fudan University Shanghai Cancer Center, Shanghai Medical College of Fudan University, Shanghai, China.