1. PhD student, Department of Orthodontics, School of Dentistry, Seoul National University, Seoul, Korea.
2. Postdoctoral student, Department of Molecular Genetics, School of Dentistry, Seoul National University, Seoul, Korea.
3. Professor, Department of Molecular Genetics, School of Dentistry; and Dental Research Institute, BK21 Program, Seoul National University, Seoul, Korea.
4. Private practice, Pohang, Korea.
5. Professor, Department of Orthodontics, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Korea.