1. Department of Prosthodontics, Peking University School and Hospital of Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Laboratory for Digital and Material Technology of Stomatology Beijing Key Laboratory of Digital Stomatology Beijing China
2. Division of Comprehensive Oral Health, Periodontology Program, Adams School of Dentistry University of North Carolina Chapel Hill North Carolina USA
3. Center for Bioinformatics, State Key Laboratory of Protein and Plant Gene Research, College of Life Sciences Peking University Beijing China
4. Experimental Medicine Section, National Institute of Dental and Craniofacial Research National Institutes of Health Bethesda Maryland USA