1. Department of Oral and Maxillofacial Surgery Center of Stomatology Xiangya hospital of Central South University Changsha Hunan China
2. Research Center of Oral and Maxillofacial Tumor Xiangya hospital of Central South University Changsha Hunan China
3. Institute of Oral Cancer and Precancerous Lesions Central South University Changsha Hunan China
4. Center for Medical Genetics & Hunan Key Laboratory of Medical Genetics School of Life Sciences Central South University Changsha Hunan China