1. Division of Oncology, Department of Pediatric Surgery, West China Hospital of Sichuan University, Chengdu, China
2. Pediatric Intensive Care Unit, Department of Critical Care Medicine, West China Hospital of Sichuan University, Chengdu, China
3. Department of Pediatric Surgery, Fujian Provincial Hospital, Fuzhou, China
4. Department of Dermatology, West China Hospital of Sichuan University, Chengdu, China
5. Department of Pediatrics, West China Second University Hospital, Sichuan University Chengdu, China
6. Department of Pediatric Surgery, Chengdu Shangjin Nanfu Hospital, Chengdu, China
7. Department of Pediatric Surgery, Sichuan Women and Children’s Hospital, Chengdu, China
8. Department of Pediatric Surgery, Chengdu Women and Children’s Central Hospital, Chengdu, China