| Affiliation: | 1. Department of Orthodontics, Seoul St. Mary''s Hospital, Catholic University of Korea, Seoul, Korea;2. Postgraduate Orthodontic Program, Arizona School of Dentistry & Oral Health, A. T. Still University, Mesa; Graduate School of Dentistry, Kyung Hee University, Seoul, Korea;3. Dental School, University of California, San Francisco, San Francisco, Calif;4. Department of Postgraduate Studies, Universidad Autonoma del Paraguay, Asunción, Paraguay;5. European University College, Dubai, United Arab Emirates |
