1. Oral and Maxillofacial Surgery Medicine, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, China
2. Examination management department, National Medical Examination Center, Beijing, China
3. Department of Biomedical Engineering and Information, Nanjing Medical University, Nanjing, Jiangsu, China
4. Department of Medical Simulation Center, Nanjing Medical University, Nanjing, Jiangsu, China