1. State Key Laboratory of Oral DiseasesWest China Hospital of StomatologySichuan UniversityChengduChina
2. National Clinical Research Center for Oral DiseasesWest China Hospital of StomatologySichuan UniversityChengduChina
3. National Engineering Laboratory for Oral Regenerative MedicineWest China Hospital of StomatologySichuan UniversityChengduChina
4. Lanzhou Hospital of StomatologyLanzhouGansu ProvinceChina
5. Department of PedodonticsWest China School of StomatologySichuan UniversityChengduSichuan ProvinceChina