1. Department of Pediatrics Yamaguchi University Graduate School of Medicine Yamaguchi Japan
2. Department of Allergy and Pulmonology Fukuoka Children's Hospital Fukuoka Japan
3. Department of Pediatrics National Hospital Organization Fukuokahigashi Medical Center Fukuoka Japan
4. Department of Pathology National Institute of Infectious Diseases Tokyo Japan
5. Department of Molecular Pathology Yamaguchi University Graduate School of Medicine Yamaguchi Japan
6. Yamaguchi Prefectural Institute of Public Health and Environment Yamaguchi Japan
7. Akihabara Atsuta Clinic Tokyo Japan
8. Department of Pediatrics, Graduate School of Medical Sciences Kyushu University Fukuoka Japan