Marongiu, Francesco
Barcellona, Doris http://orcid.org/0000-0001-7277-2868
Article History
Received: 18 February 2018
Accepted: 21 March 2018
First Online: 28 March 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 not required for this type of study.