1. Smile Forever Medical Corporation, Tokyo 206-0011, Japan
2. Global 8 Orthodontics Works, Nagoya 460-0002, Japan
3. Orthodontic Department, University of Medicine and Pharmacy Grigore T. Popa, 700115 Iași, Romania
4. American Association of Orthodontists and World Federation of Orthodontists, St. Louis, MO 63141-7816, USA