Funding for this research was provided by:
Ministero della Salute (GR2011-02350053)
Text and Data Mining valid from 2019-02-22
Received: 13 September 2018
Accepted: 11 February 2019
First Online: 22 February 2019
Ethics approval and consent to participate
: The study has been approved by Tuscan Region Paediatric Ethics Committee (Italy) (no. 78/2016).
: Not applicable.
: The authors declare that they have no competing interests.
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