1. Associate Professor, Division of Orthodontics, Department of Dentistry, College of Medicine, The Catholic University of Korea, St. Mary's Hospital, Korea.
2. Assistant Professor, School of Naval Architecture & Ocean Engineering, University of Ulsan, Korea.
3. Graduate Student, Department of Medicine Orthodontics, The Graduate School of the University of Ulsan, Korea.
4. Associate Professor, Department of Otolaryngology, University of Ulsan College of Medicine, Asan Medical Center, Korea.
5. Professor, Department of Orthodontics, University of Ulsan College of Medicine, Asan Medical Center, Korea.
6. Associate Professor, Section of Orthodontics in the Division of Associated Clinical Specialties at the UCLA School of Dentistry, US.
7. Associate Professor, Department of Orthodontics, University of Ulsan College of Medicine, Asan Medical Center, Korea.