1. Department of Pediatrics, First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China (mainland)
2. Department of Pediatrics, The Affiliated Huaian No. 1 People’s Hospital of Nanjing Medical University, Huaian, Jiangsu, China (mainland)
3. Department of Hematology, Shanghai Children’s Medical Center Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, China (mainland)