1. Division of Pediatric Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
2. Surgery Working Group, Society of Junior Doctors, Athens, Greece
3. School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
4. School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
5. Department of Surgery, Mayo Clinic, Rochester, MN, USA
6. First Department of Surgery, Laiko General Hospital, National and Kapodistrian University of Athens, Athens, Greece
7. Department of Surgery, Duke University Medical Center, Durham, NC, USA