1. Division of Oncology; Department of Pediatric Surgery; West China Hospital of Sichuan University; Chengdu 610041 China
2. Pediatric Intensive Care Unit; Department of Critical Care Medicine; West China Hospital of Sichuan University; Chengdu 610041 China
3. Department of Radiology; West China Hospital of Sichuan University; Chengdu 610041 China
4. Laboratory of Pathology; West China Hospital of Sichuan University; Chengdu 610041 China
5. Department of Vascular and Interventional Radiology; Chengdu Women and Children's Central Hospital; Chengdu 610031 China
6. Pediatric Intensive Care Unit; West China Second University Hospital; Sichuan University; Chengdu 610041 China
7. Department of Pediatric Surgery; Chengdu Shangjin Nanhu Hospital; Chengdu 611730 China
8. Vascular Biology Program and Department of Surgery; Boston Children's Hospital; Harvard Medical School; Boston MA 02115 U.S.A.