1. Stomatology Department, Sichuan Provincial People's Hospital, School of Medicine University of Electronic Science and Technology of China Chengdu China
2. Institute of Tissue Engineering and Stem Cells Nanchong Central Hospital, The Second Clinical College of North Sichuan Medical College Nanchong China
3. Stomatology Department Sichuan Provincial People's Hospital Chengdu China
4. Key Laboratory of Advanced Technologies of Materials (Ministry of Education), School of Materials Science and Engineering Southwest Jiaotong University Chengdu China