1. Children’s Medical Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, People’s Republic of China
2. Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat Sen University, Guangzhou, People’s Republic of China
3. Department of Paediatrics, First Affiliated Hospital of Guangxi Medical University, Nanning, People’s Republic of China
4. Department of Paediatrics, Zhujiang Hospital of Southern Medical University, Guangzhou, People’s Republic of China
5. Department of Hematology, Hunan Children’s Hospital, Changsha, People’s Republic of China
6. Department of Paediatrics, First Affiliated Hospital of Sun Yat-sen University, Guangzhou, People’s Republic of China
7. Department of Paediatrics, Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, People’s Republic of China
8. Department of Paediatrics, Guangzhou First People’s Hospital, Guangzhou, People’s Republic of China