1. Department of Pediatric Surgery, Alexandroupolis University Hospital, Democritus University of Thrace, 68100 Alexandroupolis, Greece
2. Department of Radiology, Alexandroupolis University Hospital, Democritus University of Thrace, 68100 Alexandroupolis, Greece
3. Private School “Anodos”, Ainou 23, 68100 Alexandroupolis, Greece
4. Department of Experimental Surgery, Democritus University of Thrace, 68100 Alexandroupolis, Greece
5. Department of General Surgery, Alexandroupolis University Hospital, Democritus University of Thrace, 68100 Alexandroupolis, Greece
6. Department of Pediatric Surgery, Rio University Hospital, University of Patras, 26504 Rio, Greece