1. Department of Oral Medicine, Center of Stomatology, Xiangya Hospital, Central South University, Changsha, Hunan, China
2. Center of Oral and Maxillofacial Cancer (COMAC), Xiangya Hospital, Central South University, Changsha, Hunan, China
3. Institute of Oral Cancer and Precancerous Lesions, Central South University, Changsha, Hunan, China
4. National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
5. Department of Oral and Maxillofacial Surgery, Center of Stomatology, Xiangya Hospital, Central South University, Changsha, Hunan, China
6. Key Laboratory of Molecular Radiation Oncology Hunan Province, Changsha, Hunan, China