1. Private Practice, Seoul, Korea
2. Department of Orthodontics, Korea University Anam Hospital, Seoul, Korea
3. Department of Orthodontics, Institute of Oral Health Science, Ajou University School of Medicine, Suwon, Korea
4. Department of Oral and Maxillofacial Surgery, Seoul St. Mary’s Hospital, Catholic University of Korea, Seoul, Korea
5. Orthodontics and Maxillary Orthopedics, University of Salvador, Buenos Aires, Argentina
6. SAS Orthodontic Centre, Ichiban-Cho Dental Clinic, Sendai, Japan
7. Department of Oral and Maxillofacial Surgery, Dental Center, Chung-Ang University Hospital, Seoul, Korea