1. Department of Pediatric Surgery; Massachusetts General Hospital; Boston Massachusetts
2. Pediatrics Working Group; Society of Junior Doctors; Athens Greece
3. Surgery Working Group; Society of Junior Doctors; Athens Greece
4. First Department of Surgery; Laiko General Hospital; School of Medicine; National and Kapodistrian University of Athens; Athens Greece
5. Department of Obstetrics and Gynecology; Hospital of the University of Pennsylvania; Philadelphia Pennsylvania