1. Private Practice in Kawamura Dental Office Gifu Japan
2. Postgraduate Orthodontic Program Arizona School of Dentistry & Oral Health, A.T. Still University Mesa Ariz
3. Graduate School of Dentistry Kyung Hee University Seoul Korea
4. Private Practice Nagoya Japan
5. Department of Orthodontics, Seoul St. Mary's Hospital Catholic University of Korea Seoul Korea
6. Department of Orthodontics, School of Dentistry Kyungpook National University Daegu Korea
7. Department of Orthodontics, School of Dentistry, Wonkwang Dental Research Institute University of Wonkwang Iksan Korea