Funding for this research was provided by:
Italian Ministry of Health (RF-2011-02346763)
Received: 19 March 2019
Accepted: 27 July 2019
First Online: 5 August 2019
Ethics approval and consent to participate
: Patients/controls provided written informed consent and the study was approved approved by the local ethical Committee (<i>232/2015/O/Tess by Investigation Drug Service</i>, <i>Azienda Ospedaliero</i>-<i>Universitaria di Bologna</i>).
: Not applicable.
: The authors declare that they have no competing interests.