Ruffino, Maria Antonella
Fronda, Marco http://orcid.org/0000-0002-1227-9040
Discalzi, Andrea
Isoardi, Paola
Bergamasco, Laura
Ropolo, Roberto
Righi, Dorico
Fonio, Paolo
Article History
Received: 4 May 2018
Accepted: 13 July 2018
First Online: 23 July 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: All procedures were in accordance with the ethical standards of the institutional research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.