1. Department of Radiological Technology Tsuchiya General Hospital Hiroshima Japan
2. Hiroshima central street Children's Clinic Hiroshima Japan
3. Department of Pediatric Cardiology Shizuoka Children's Hospital Shizuoka Japan
4. Nitta Pediatric Clinic Hiroshima Japan
5. Department of Pediatric Cardiology Tsuchiya General Hospital Hiroshima Japan
6. Philips Japan Tokyo Japan
7. Department of Health Care North Hiroshima Hospital Hiroshima Japan
8. Department of Diagnostic Radiology Tsuchiya General Hospital Hiroshima Japan