1. Center for Clinical Epidemiology and Evidence‐based Medicine Beijing Children’s Hospital Capital Medical University National Center for Children’s Health Beijing China
2. School of Nursing Capital Medical University Beijing China
3. Department of Hematology The Third People’s Hospital of Zhengzhou Henan China
4. Hematology Center Beijing Key Laboratory of Pediatric Hematology Oncology National Key Discipline of Pediatrics (Capital Medical University) Key Laboratory of Major Diseases in Children Ministry of Education Beijing Children’s Hospital Capital Medical University National Center for Children’s Health Beijing China
5. Pediatric Oncology Center Beijing Children’s Hospital Capital Medical University National Center for Children’s Health Beijing China