1. Department of Paediatrics; St. Marianna University School of Medicine; Kawasaki Japan
2. Department of Laboratory Medicine; Tokai University School of Medicine; Isehara Japan
3. Department of Molecular Diagnostics and Therapeutics; Kyoto Prefectural University of Medicine; Kyoto Japan
4. Department of Nutrition and Health; Faculty of Psychological Science; Aichi-Gakuin University; Aichi Japan
5. Clinical Research Centre; National Hospital Organization; Nagoya Japan
6. Department of Paediatrics; Tokyo Medical and Dental University; Tokyo Japan
7. Department of Paediatrics; Shiga University of Medical Science; Otsu Japan
8. Department of Paediatrics; Toho University; Tokyo Japan
9. Human Health Sciences; Kyoto University; Kyoto Japan
10. Department of Haematology/Oncology; Gunma Children's Medical Centre; Gunma Japan
11. Department of Paediatrics; Osaka Medical Centre; National Hospital Organization; Osaka Japan