1. Hulya Ozturk:
Department of Paediatric Surgery, Duzce University Medical School Duzce, Turkey
2. Merih Is:
Department of Neurosurgery, Duzce University Medical School Duzce, Turkey
3. Hayrettin Ozturk:
Department of Paediatric Surgery, Abant Izzet Baysal University Medical School, Bolu, Turkey
4. Adem Kucuk:
Department of Paediatric Surgery, Duzce University Medical School, Duzce, Turkey
5. Murat Dosoglu:
Department of Neurosurgery, Duzce University Medical School Duzce, Turkey