Alexandrova-Karamanova, Anna https://orcid.org/0000-0002-4077-7127
Mineva, Krasimira https://orcid.org/0009-0008-8059-844X
Dimitrova, Elitsa https://orcid.org/0000-0002-5697-220X
Kotzeva, Tatyana https://orcid.org/0000-0002-8823-4404
Funding for this research was provided by:
Bulgarian National Science Fund (КП-06-Н55/7)
Article History
Accepted: 26 December 2024
First Online: 14 January 2025
Declarations
:
: The authors have no competing interests to declare that are relevant to the content of this article.
: This study was performed in line with the principles of the Declaration of Helsinki. Approval was granted by the Ethics Committee of the Institute for Population and Human Studies at the Bulgarian Academy of Sciences (protocol code RD-5–90 / 05.05.2022).
: Informed consent was obtained from the adolescents involved in the study and from their parents/legal guardians.