1. Kato Children’s Clinic NatoriJapan
2. Department of Infectious diseases Kyorin University School of Medicine TokyoJapan
3. Department of Pediatrics and Adolescent Medicine Juntendo University Graduate School of Medicine TokyoJapan
4. Nojiri Children and Family Clinic FujinomiyaJapan
5. Children’s Center for Digestive Healthcare, LLC Atlanta GA USA
6. Department of Pediatric Gastroenterology and Endocrinology Osaka Women’s and Children’s Hospital OsakaJapan
7. Department of Pediatrics Gunma University Graduate School of Medicine MaebashiJapan
8. Division of Clinical Infectious Diseases & Chemotherapy Tohoku Medical and Pharmaceutical University Graduate School of Pharmaceutical Sciences SendaiJapan
9. Department of Pediatrics Sapporo Kosei General Hospital SapporoJapan
10. Department of Pediatrics Hiroshima City Hiroshima Citizens Hospital HiroshimaJapan
11. Department of Pediatrics and Child Health Kurume University School of Medicine KurumeJapan
12. Yoshimura Medical Clinic OsakaJapan
13. Department of Pediatrics Shinshu University School of Medicine Matsumoto Japan