1. State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
2. Department of Oral Mucosa and Periodontitis, Shanghai Stomatological Hospital & School of Stomatology, Fudan University, Shanghai, China
3. Shanghai Key Laboratory of Craniomaxillofacial Development and Diseases, Fudan University, Shanghai, China
4. Department of Oral Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu, China