1. Nursing SchoolGuizhou University of Traditional Chinese Medicine Guiyang China
2. State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of StomatologySichuan University Chengdu China
3. State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Oral Pathology, West China Hospital of StomatologySichuan University Chengdu China
4. State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Cariology and Endodontics, West China Hospital of StomatologySichuan University Chengdu China