1. Department of Pediatrics, Faculty of Medicine, Osaka Medical College, Takatsuki, Japan;
2. Laboratory of Pediatric Research, Institute of Tokyo Medical School, Tokyo, Japan;
3. Department of Pediatrics, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan;
4. Department of Pediatrics, KKR Sapporo Medical Center, Sapporo, Japan;
5. Department of Pediatrics, Graduate School of Medical Sciences, Kanazawa University, Kanazawa, Japan;
6. Department of Pediatrics, Yokohama City University Graduate School of Medicine, Yokohama, Japan;
7. Department of Infection and Immunology, Aichi Children’s Health and Medical Center, Obu, Japan;
8. Department of General Pediatrics, Miyagi Children’s Hospital, Sendai, Japan;
9. Department of Child Health and Welfare (Pediatrics), Graduate School of Medicine, University of the Ryukyus, Nishihara, Japan;
10. Department of Pediatrics, Hiroshima University Graduate School of Biomedical & Health Sciences, Hiroshima, Japan;
11. Department of Lifetime Clinical Immunology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan