Text and Data Mining valid from 2019-06-13
Received: 23 July 2018
Accepted: 4 June 2019
First Online: 13 June 2019
Ethics approval and consent to participate
: Ethical approval for the present study was obtained by the Ethical Committee of the Verona University Hospital (Protocol n.16160; 31/03/2016).All recruited participants signed the informed consent form.
: Not applicable.
: The authors declare that they have no competing interests.