1. State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Clinical Research Center for Oral Diseases, Department of Orthodontics, School of Stomatology, The Fourth Military Medical University, Xi’an, Shaanxi, China
2. State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi International Joint Research Center for Oral Diseases, Center for Tissue Engineering, School of Stomatology, The Fourth Military Medical Universit, Xi’an, Shaanxi, China
3. Xi’an Institute of Tissue Engineering and Regenerative Medicine, Xi’an, Shaanxi, China
4. Department of Stomatology, the Fifth Medical Centre, Chinese PLA General Hospital, Beijing, China