1. State Key Laboratory of Oral DiseasesNational Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan UniversityChengdu People's Republic of China
2. Department of PathologyUniversity of Alabama at BirminghamBirmingham AL USA
3. Chongqing Key Laboratory of Oral Diseases and Biological Science, Stomatological HospitalChongqing Medical UniversityChongqing People's Republic of China
4. Department of GeneticsUniversity of Alabama at BirminghamBirmingham AL USA
5. Department of Pediatric DentistrySchool of Dentistry, University of Alabama at Birmingham Birmingham AL USA