1. Department of Periodontology, National Clinical Research Center for Oral Diseases, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology Peking University School and Hospital of Stomatology Beijing China
2. Department of Periodontology, Tianjin Stomatological Hospital, Hospital of Stomatology NanKai University Tianjin China
3. Department of Immunology, School of Basic Medical Sciences, and NHC Key Laboratory of Medical Immunology Peking University Beijing China
4. Center for Human Disease Genomics Peking University Beijing China
5. Peking University Hepatology Institute, Beijing Key Laboratory of Hepatitis C and Immunotherapy for Liver Diseases Peking University People's Hospital Beijing China
6. NHC Research Center of Engineering and Technology for Computerized Dentistry Beijing China