1. Graduate Student, Department of Orthodontics, Gangnam Severance Hospital, The Institute of Craniofacial Deformity, College of Dentistry, Yonsei University, Seoul, Korea.
2. Assistant Professor, Department of Orthodontics, Gangnam Severance Hospital, The Institute of Craniofacial Deformity, College of Dentistry, Yonsei University, Seoul, Korea.
3. Associate Professor, Department of Orthodontics, The Institute of Craniofacial Deformity, College of Dentistry, Yonsei University, Seoul, Korea.
4. Assistant Professor, Department of Dermatology, Cutaneous Biology Research Institute, Yonsei University, College of Medicine, Seoul, Korea.
5. Associate Professor, Department of Orthodontics, University of North Carolina School of Dentistry, Chapel Hill, NC, USA.
6. Professor, Department of Orthodontics, Gangnam Severance Hospital, The Institute of Craniofacial Deformity, College of Dentistry, Yonsei University, Seoul, Korea.
7. Professor, Department of Orthodontics, Gangnam Severance Hospital, Seoul, Korea.
8. Visiting Scholar, Department of Orthodontics, University of North Carolina School of Dentistry, Chapel Hill, NC, USA.