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Article History

Received: 4 June 2018

Accepted: 3 August 2018

First Online: 16 August 2018

Compliance with ethical standards

:

: All 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. The local Ethics Committee (The Ethics Committee-Federico II University of Naples) approved the Olivetti study protocol.

: Written informed consent was obtained from all individual participants included in the study.