1. Department of Pediatric Surgery the Second Affiliated Hospital of Xi'an Jiaotong University Xi'an Shaanxi China
2. Department of Pediatric Surgery Guangzhou Institute of Pediatrics Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease Guangzhou Women and Children's Medical Center Guangzhou Medical University Guangzhou Guangdong China
3. Clinical Laboratory Medicine Center of PLA Xijing Hospital Air Force Medical University Xi'an Shaanxi China
4. Department of Neonatology Shaanxi Provincial People's Hospital Xi'an Shaanxi China
5. Department of Pediatric Surgery the First Affiliated Hospital of Zhengzhou University Zhengzhou Henan China
6. Department of Hematology The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University Wenzhou Zhejiang China