1. Department of Stomatology, Zhou Shan Hospital, Zhoushan Zhejiang, China.
2. State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu Sichuan, China.
3. Department of Oral Pathology, West China Hospital of Stomatology, Sichuan University, Chengdu Sichuan, China.
4. Department of Oral and Maxillofacial Surgery, West China College of Stomatology, Sichuan University, Chengdu Sichuan, China.