1. Department of Biologic and Materials Sciences, School of Dentistry, University of Michigan, Ann Arbor, MI, USA
2. Department of Dentistry, School of Dentistry, National Taiwan University, Jhongjheng District, Taipei City, Taiwan
3. Department of Prosthodontics, National Taiwan University Hospital, Jhongjheng District, Taipei City, Taiwan
4. Division of Pediatric Dentistry, Department of Stomatology, Taichung Veterans General Hospital, Xitun District, Taichung City, Taiwan
5. Department of Pediatric Dentistry and Dental Research Institute, School of Dentistry, Seoul National University, Seoul, Republic of Korea
6. Department of Molecular Genetics and Dental Research Institute, School of Dentistry, Seoul National University, Seoul, Republic of Korea