1. State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education; School and Hospital of Stomatology, Wuhan University; Wuhan China
2. Department of Second Clinical Branches; School and Hospital of Stomatology, Wuhan University; Wuhan China
3. Department of Stomatology, Tongji Hospital; Tongji Medical College, Huazhong University of Science and Technology; Wuhan China
4. Division of Endodontics, Faculty of Dentistry, Department of Oral Biological and Medical Sciences; University of British Columbia; Vancouver Canada
5. Faculty of Dentistry, Area of Endodontics, Comprehensive Dental Care; University of Hong Kong; Hong Kong China
6. State Key Laboratory of Oral Diseases, West China College and Hospital of Stomatology; Sichuan University; Chengdu China