Colloca, Giuseppe A.
Venturino, Antonella
Guarneri, Domenico
Article History
Received: 22 October 2018
Accepted: 23 January 2019
First Online: 4 February 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: All procedures performed in studies involving human participants 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.
: For this type of study, formal consent is not required.