1. Department of Pediatric Surgery, The First People's Hospital of Lianyungang, Lianyungang, China.
2. The Affiliated Lianyungang Hospital of Xuzhou Medical University, The First People's Hospital of Lianyungang, Lianyungang, China.
3. The First Affiliated Hospital of Kangda College of Nanjing Medical University, The First People's Hospital of Lianyungang, Lianyungang, China.
4. Department of Operating Room, The First People's Hospital of Lianyungang, Lianyungang, China.