Funding for this research was provided by:
Università degli Studi di Napoli Federico II
Accepted: 9 January 2021
First Online: 6 March 2021
: The authors declare that they have no conflict of interest.
: All procedures performed in this study involving human participants were in accordance with the ethical standards of the institutional and national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Written informed consent was obtained from the parents. Informed assent was obtained from all adolescent participants included in the study.