1. Department of Hematology/Oncology, Children's Medical Center, Sun Yat‐sen Memorial Hospital Sun Yat‐sen University Guangzhou China
2. Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat‐Sen Memorial Hospital Sun Yat‐Sen University Guangzhou China
3. Department of Hematology/Oncology Guangzhou Women and Children's Medical Center Guangzhou China
4. Department of Paediatrics, the First Affiliated Hospital Sun Yat‐sen University Guangzhou China
5. Department of Hematology/Oncology Shenzhen Children's Hospital Shenzhen China
6. Department of Paediatrics Huizhou Municipal Central Hospital Huizhou China
7. Department of Paediatrics, the Third Affiliated Hospital Sun Yat‐sen University Guangzhou China
8. Department of Paediatrics Nanfang Hospital, Southern Medical University Guangzhou China
9. Department of Paediatrics Sun Yat‐sen University Cancer Center Guangzhou China
10. Department of Paediatrics, Hong Kong Children Hospital and Prince of Wales Hospital The Chinese University of Hong Kong Hong Kong China