1. Hematology Oncology Center; Beijing Children's Hospital; Capital Medical University; Beijing Key Laboratory of Pediatric Hematology Oncology; National Key Discipline of Pediatrics; Ministry of Education; MOE Key Laboratory of Major Diseases in Children; Beijing China
2. Center for Clinical Epidemiology and Evidence-Based Medicine; Beijing Children's Hospital; Capital Medical University; Key Laboratory of Major Diseases in Children; Ministry of Education; Beijing China
3. Department of Pathology; Beijing Children's Hospital; Capital Medical University; Beijing China
4. Department of Pediatric Thoracic Surgery; Beijing Children's Hospital; Capital Medical University; Key Laboratory of Major Diseases in Children; Ministry of Education; Beijing China