Author contribution: Milushkina OYu — study planning, manuscript draft preparation; Skoblina NA — study planning, data acquisition, analysis and interpretation, analysis of publication activity using the tag (word) cloud service, manuscript draft preparation; Korolik VV, Sheina NI, Bokareva NA, Kozyreva FU, Bulatseva MB, Dubrovina EA, Tikhonova YuL — data acquisition; Markelova SV — data acquisition, analysis and interpretation, manuscript draft preparation.

Compliance with ethical standards: the study was approved by the Ethics Committee of the Pirogov Russian National Research Medical University (R&D project state registration number АААА-А19-119021890068-7 of 18 February 2019; protocols № 159 dated 21 November 2016, № 203 dated 20 December 2020, № 209 dated 28 June 2021). The study was compliant with the principles of biomedical ethics and did not endanger the subjects.