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.