1. Department of Surgical Specialties; National Center for Child Health and Development; Tokyo Japan
2. Center for Vascular Anomalies; KKR Tonan Hospital; Hokkaido Japan
3. Department of Dermatology; Kanagawa Children's Medical Center; Kanagawa Japan
4. Department of Hematology/Oncology; Saitama Children's Medical Center; Saitama Japan
5. Department of General Medicine; Kanagawa Children's Medical Center; Kanagawa Japan
6. Department of Plastic and Reconstructive Surgery; School of Medicine; Fukuoka University; Fukuoka Japan
7. Department of Dermatology; Toranomon Hospital; Tokyo Japan
8. Division of Otorhinolaryngology; Chiba Children's Hospital; Chiba Japan
9. Department of Hematology and Oncology; Gunma Children's Medical Center; Gunma Japan
10. Department of Dermatology; Showa General Hospital; Tokyo Japan
11. Department of Pediatrics; Jichi Medical University School of Medicine; Tochigi Japan
12. Department of Dermatology; University of Tokyo Graduate School of Medicine; Tokyo Japan
13. Department of Hematology and Oncology; Okinawa Prefectural Nanbu Medical Center and Children's Medical Center; Okinawa Japan
14. Department of Plastic and Reconstructive Surgery; Keio University School of Medicine; Tokyo Japan
15. Department of Plastic Surgery; Hyogo Prefectural Kobe Children's Hospital; Hyogo Japan
16. Department of Hematology and Oncology; Miyagi Children's Hospital; Miyagi Japan
17. Maruho; Kyoto Japan