1 Department of Haematology and Oncology, Shenzhen Children's Hospital, Shenzhen 518038, China; Paediatric Research Institute, Shenzhen Children's Hospital, Shenzhen 518038, China.
2 Department of Microbiology, School of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Aberdeen, UK.
3 Department of Haematology and Oncology, Shenzhen Children's Hospital, Shenzhen 518038, China. Electronic address: tiger649@126.com.
4 Department of Haematology and Oncology, Shenzhen Children's Hospital, Shenzhen 518038, China; Paediatric Research Institute, Shenzhen Children's Hospital, Shenzhen 518038, China. Electronic address: fwen62@163.com.