1. Field of Developmental Medicine, Health Research Course, Graduate School of Medical and Dental Sciences, Department of Orthodontics & Dentofacial Orthopedics, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima, 890-8544, Japan
2. Department of Orthodontics and Dentofacial Orthopedics, Osaka University Graduate School of Dentistry, Suita, Japan