1. Department of Pediatrics, Daegu Catholic University Medical Center, Daegu, Korea
2. Korea Hemophilia Foundation Clinic, Gwangju, Korea
3. Korea Hemophilia Foundation Clinic, Seoul, Korea
4. HughChul Kim Internal Medicine Clinic, Seoul, Korea
5. Sunchun Chung Hospital, Seoul, Korea
6. Hematology, Growth and Emerging Markets, Takeda Pharmaceutical International, Singapore
7. Global Patient safety Evaluation, Takeda Pharmaceutical Company Ltd, Cambridge, MA, USA