Affiliation: | 1. Private practice, Kuala, Lumpur, Malaysia;2. Tutor, Department of Orthodontics, School of Dentistry, University of Nagasaki, Nagasaki, Japan;3. Assistant professor, Department of Orthodontics, School of Dentistry, University of Nagasaki, Nagasaki, Japan;4. Professor and chairman, Department of Orthodontics, School of Dentistry, University of Nagasaki, Nagasaki, Japan |