Author contribution: Sazonova OV — academic advising; Tupikova DS, Gavryushin MYu — study initiation, data collection, processing of results; Ryazanova TK, Frolova OV — design, data collection; Trubetskaya SR — analysis of sources, preparation and correction of the article.

Compliance with ethical standards: the study was approved by the Ethics Committee of the Samara State University of the Ministry of Health of the Russian Federation (protocol No. 184 as of December 21, 2021). No voluntary informed consent for every participant (authorized representative) was required.