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Article History

Received: 18 June 2023

Revised: 8 September 2023

Accepted: 8 September 2023

First Online: 10 November 2023

COMPLIANCE WITH ETHICAL STANDARDS

: All studies were conducted in accordance with the principles of biomedical ethics formulated in the 1964 Declaration of Helsinki and its subsequent updates, and approved by the Local Bioethics Committee of the V.I. Vernadsky Crimean Federal University (Simferopol), minutes of the committee meeting no. 10 of November 4, 2019.Informed Consent. Each parent of a research participant provided voluntary written informed consent, signed by them after the potential risks and benefits and the nature of the forthcoming study were explained to them.

: The authors declare that they have no conflicts of interest.