1. Peking University People's Hospital, Peking University Institute of Haematology National Clinical Research Center for Haematologic Disease, Collaborative Innovation Center of Haematology, Beijing Key Laboratory of Haematopoietic Stem Cell Transplant Beijing P.R. China
2. Hebei Yanda Lu Daopei Hospital and Beijing Lu Daopei Hospital Beijing Hebei China
3. Children's Hospital of Soochow University Soochow China
4. Nanfang‐Chunfu Children's Institute of Hematology and Oncology Dongguan China
5. The Children's Hospital of Zhejiang University School of Medicine, National Clinical Research Center for Child Health Hangzhou China
6. The First Affiliated Hospital of Shandong First Medical University and Shandong Provincial Qianfoshan Hospital Jinan China
7. The Second Hospital of Dalian Medical University Dalian China
8. Shanghai Children's Medical Center Shanghai China
9. Shenzhen Children's Hospital Shenzhen China
10. Beijing Jingdu Children's Hospital Beijing China
11. Nanfang Hospital Southern Medical University Guangzhou China
12. Peking‐Tsinghua Centre for Life Sciences Beijing China