Sparano, C.
Parenti, G.
Cilotti, A.
Bencini, L.
Calistri, M.
Mannucci, E.
Biagini, C.
Vezzosi, V.
Mannelli, M.
Forti, G.
Petrone, L.
Article History
Received: 12 December 2017
Accepted: 9 March 2018
First Online: 15 March 2018
Compliance with ethical standards
:
: The authors declare that there is no conflict of interest regarding the publication of this paper.
: All procedures performed in our study were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: For this type of study formal consent is not required.