State Key Laboratory of Oral Diseases&National Clinical Research Center for Oral Diseases&West China Hospital of Stomatology Sichuan University Chengdu China;
Department of Endodontics School of Stomatology Capital Medical University Beijing China;
West China School of Public Health and West China Fourth Hospital Sichuan University Chengdu China;
State Key Laboratory of Oral Diseases&National Clinical Research Center for Oral Diseases&West China Hospital of Stomatology Sichuan University Chengdu China;
West China School of Public Health and West China Fourth Hospital Sichuan University Chengdu China;
State Key Laboratory of Oral Diseases&National Clinical Research Center for Oral Diseases&West China Hospital of Stomatology Sichuan University Chengdu China;
State Key Laboratory of Oral Diseases&National Clinical Research Center for Oral Diseases&West China Hospital of Stomatology Sichuan University Chengdu China;
State Key Laboratory of Oral Diseases&National Clinical Research Center for Oral Diseases&West China Hospital of Stomatology Sichuan University Chengdu China;