1. The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, China;
2. Department of Oral Radiology, School and Hospital of Stomatology Wuhan University, Wuhan, China;
3. Department of Oral Emergency, School and Hospital of Stomatology Wuhan University, Wuhan, China