1. Researcher, Section of Orthodontics, Department of Oral Growth & Development, Division of Clinical Dentistry, Fukuoka Dental College, Fukuoka city, Japan
2. Professor, Section of Orthodontics, Department of Oral Growth & Development, Division of Clinical Dentistry, Fukuoka Dental College, Fukuoka city, Japan
3. Pediatrics Director, Social Welfare Corporation, the Yuhkari Gakuen Institution for Handicapped Children, Kurume city, Japan
4. Chairperson of Board of Trustees of the Educational Institution Fukuoka Gakuen, Professor Emeritus of Kyushu University, Fukuoka city, Japan