Vaira, Luigi Angelo http://orcid.org/0000-0002-7789-145X
Massarelli, Olindo
Gobbi, Roberta
Biglio, Andrea
De Riu, Giacomo
Article History
Received: 12 November 2017
Accepted: 25 January 2018
First Online: 2 February 2018
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 or comparable ethical standards.
: Informed consent was obtained from all individual participants included in the study.