1. Department of Prosthodontics, 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. National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology The 3rd Dental Clinic, Peking University School and Hospital of Stomatology Beijing China
3. Oral and Craniofacial Biomedicine Curriculum, School of Dentistry University of North Carolina at Chapel Hill Chapel Hill North Carolina
4. National Institute of Dental and Craniofacial Research, NIH Bethesda Maryland