2.5. Ethical Considerations
The present study was conducted after approval of the study protocol by the ethics committee of the Federico II University of Naples. Both participants and parents/legal guardians were informed about the modalities of the study as well as the aim and purpose before enrollment. Informed consent was obtained from each of the participants. Participation in the study was free and unconditional; in addition, one’s consent to participate could be withdrawn at any time. The collection and analysis of the data exhibited were conducted anonymously, respecting the privacy of each participant.