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Article History

Received: 15 November 2022

Revised: 27 January 2023

Accepted: 31 January 2023

First Online: 23 June 2023

COMPLIANCE WITH ETHICAL STANDARDS

: All procedures performed in studies involving human participants were in accordance with the biomedical ethics principles formulated in the 1964 Helsinki Declaration and its later amendments and approved by the local Bioethics Committee of St. Petersburg State University (St. Petersburg).<i>Conflict of interest.</i> The authors declare that they have no conflicts of interest.<i>Informed consent.</i> Each study participant provided a signed voluntary written informed consent after explanation of the potential risks and benefits, as well as the nature of the upcoming study, to him.

: D.S. Gnedykh—data collection, visualization, writing the text of the article; N.A. Mkrtychyan—data collection, mathematical and statistical data processing; E.D. Blago-vechtchenski—methodology, editing the text of the article; S.N. Kostromina—study design, methodology, editing the text of the article; Y.Y. Shtyrov—study design, methodology, scientific guidance, editing the text of the article.