Department of Pediatric Surgery, Fondazione IRCCS Ca’ Granda - Ospedale Maggiore Policlinico, Milano, Italy
Copyright © 2018 Korean Society of Gastrointestinal Endoscopy
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Conflicts of Interest:The authors have no financial conflicts of interest.
Author contributions
Conceptualization: Francesco Macchini
Data curation: Elettra Vestri, Martina Ichino
Formal analysis: Anna Morandi
Investigation: MI
Methodology: AM, Giorgio Fava
Supervision: GF, Ernesto Leva
Validation: EL
Writing-original draft: FM, EV