Funding for this research was provided by:
FP7 Health (HEALTH-F2-2009-24190)
Received: 10 January 2020
Accepted: 3 March 2020
First Online: 16 March 2020
Ethics approval and consent to participate
: Ethical approval was obtained from the local Research Ethics Committee (“Comitato Etico dell’Azienda Ospedaliera Universitaria di Bologna” of the Sant’Orsola-Malpighi Policlinic) with reference number 113/2006/U in accordance with the Declaration of Helsinki. All participants provided written informed consent before participating in the study.
: Not applicable.
: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.