Text and Data Mining valid from 2019-03-20
Received: 23 September 2018
Accepted: 13 March 2019
First Online: 20 March 2019
Ethics approval and consent to participate
: The study was approved by the Institutional Research Board (Direzione scientifica of Institute for Maternal and Child Health - IRCCS “Burlo Garofolo” – Trieste, Italy).
: Parental written consent.
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