Oppo, Annalisa http://orcid.org/0000-0002-4398-1852
Schweiger, Marta
Ristallo, Arianna
Presti, Giovambattista
Pergolizzi, Francesca
Moderato, Paolo
Article History
First Online: 11 September 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 or comparable ethical standards.
: Informed consent was obtained from all participants included in the study.