Vaienti, Enrico
Schiavi, Paolo
Ceccarelli, Francesco
Pogliacomi, Francesco
Article History
Received: 29 June 2018
Accepted: 15 August 2018
First Online: 22 August 2018
Compliance with ethical standards
: The Local Research Ethics Service approved the study, which was conducted following the principles of Declaration of Helsinki. All patients signed informed consent.
: The authors declare that they have no conflict of interest.