1. Health Administration Center, Tohoku University, Sendai, Japan
2. Clinics for Maxillo-Oral Disorders, Tohoku University Dental Hospital, Sendai, Japan
3. Department of Plastic and Reconstructive Surgery, Graduate School of Medicine, Tohoku University, Sendai, Japan
4. Department of Plastic and Reconstructive Surgery, Furukawa City Hospital, Furukawa, Japan
5. Division of Orthodontics, Department of Life-Long Oral Health Science, Graduate School of Dentistry, Tohoku University, Sendai, Japan