Funding for this research was provided by:
Università degli Studi di Padova (Junior Research Grant 2015)
Univeversità degli Studi di Padova (Supporting Talents in Research@University of Padua)
Text and Data Mining valid from 2018-10-22
Received: 16 March 2018
Accepted: 1 October 2018
First Online: 22 October 2018
Ethics approval and consent to participate
: As this is a retrospective study no Ethical Committee approval was necessary.
: Not applicable.
: The authors declare that they have no competing interests.
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