1. Department of General Surgery, Haseki Training and Research Hospital, Istanbul, Turkey
2. Department of General Surgery, Lutfiye Nuri Burat State Hospital, Istanbul, Turkey
3. Department of General Surgery, Istanbul Training and Research Hospital, Istanbul, Turkey
4. Department of Pediatric Surgery, Bezmialem University School of Medicine, Istanbul, Turkey
5. Department of Pathology, Avrasya Hospital, Istanbul, Turkey
6. Department of Biochemistry, Haseki Training and Research Hospital, Istanbul, Turkey
7. Department of Pediatric Surgery, Avrasya Hospital, Istanbul, Turkey