Text and Data Mining valid from 2018-05-15
Received: 10 March 2018
Accepted: 18 April 2018
First Online: 15 May 2018
Ethics approval and consent to participate
: Ethics approval was obtained by the Local Ethical Committee (University Hospital Policlinico-Vittorio Emanuele, Catania, Italy).
: Giovanni Corsello is the Editor-in-Chief of Italian Journal of Pediatrics, and declares that he has no competing interests in light of this. The remaining authors also declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.