1. Department of Pediatrics Peking Union Medical College HospitalChinese Academe of Medical Sciences and Peking Union Medical College Beijing China
2. Department of Pediatrics Beijing Shijitan HospitalCapital Medical University Beijing China
3. Department of Radiology Peking Union Medical College HospitalChinese Academe of Medical Sciences and Peking Union Medical College Beijing China
4. Department of Hematology Peking Union Medical College HospitalChinese Academe of Medical Sciences & Peking Union Medical College Beijing China
5. Department of Physical Medical Rehabilitation Peking Union Medical College HospitalChinese Academe of Medical Sciences and Peking Union Medical College Beijing China
6. Department of Medicine, Pediatrics and Oncology University of Calgary Cumming School of MedicineSouthern Alberta Rare Blood and Bleeding Disorders Comprehensive Care ProgramFoothills Hospital Calgary Alberta Canada