1. Center for Temporomandibular Disorders and Orofacial Pain, Peking University School and Hospital of Stomatology
2. Department of Oral and Maxillofacial Radiology, Peking University School and Hospital of Stomatology
3. Department of Dentistry, Ng Teng Fong Hospital General and Jurong Medical Centre, Jurong Health Services
4. School of Science and Technology, SIM University
5. Faculty of Dentistry, National University of Singapore
6. Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology