| Affiliation: | 1. Department of Periodontology, Hospital of Stomatology, Medical School, Nanjing University, Nanjing, Jiangsu Province, China;2. Department of Stomatology, Quanzhou First Hospital Affiliated to Fujian Medical University, Quanzhou, Fujian Province, China;3. Department of Endodontics, Hospital of Stomatology, Medical School, Nanjing University, Nanjing, Jiangsu Province, China;4. Department of Pathology, Nanjing Jinling Hospital, Nanjing University School of Medicine, Nanjing, Jiangsu Province, China |
