1. Department of Oral and Maxillofacial Surgery, Center of Stomatology Xiangya Hospital, Central South University Changsha Hunan China
2. Research Center of Oral and Maxillofacial Tumor Xiangya Hospital, Central South University Changsha Hunan China
3. Institute of Oral Precancerous Lesions Central South University Changsha China
4. Center for Medical Genetics & Hunan Key Laboratory of Medical Genetics, School of Life Sciences Central South University Changsha Hunan China
5. National Clinical Research Center for Geriatric Disorders Xiangya Hospital Changsha Hunan China