1. State Key Laboratory of Oral Diseases West China Hospital of Stomatology Sichuan University Chengdu 610064 China
2. National Clinical Research Center for Oral Diseases West China Hospital of Stomatology Sichuan University Chengdu 610064 China
3. College of Medical Informatics Chongqing Medical University Chongqing 400016 China
4. Institute of Biomedical Engineering West China School of Basic Medical Sciences & Forensic Medicine Sichuan University Chengdu 610064 China