1. Department of Pediatric Surgery, Ataturk University School of Medicine, Erzurum, Turkey
2. Department of Pediatric Surgery, Dr. Behcet Uz Children's Hospital, Izmir, Turkey
3. Department of Radiology, Ataturk University School of Medicine, Erzurum, Turkey
4. Department of Anesthesiology and Reanimation, Ataturk University School of Medicine, Erzurum, Turkey
5. Department of Pediatric Surgery, Sisli Etfal Training and Research Hospital, İstanbul, Turkey