Affiliation: | Hamed Alshawwa, Jia-Feng Wang, Shu-Fen Sun, Department of Endodontics, Hospital of Stomatology, Jilin University, Changchun 130021, Jilin Province, ChinaMin Liu, Department of Periodontics, Hospital of Stomatology, Jilin University, Changchun 130021, Jilin Province, China |