Compliance with ethical standards: the study followed the principles of the Declaration of Helsinki by the World Medical Association.

Author contribution: Yegiazaryan KA supervised the study, analyzed the literature and contributed to writing the manuscript; Sirotin IV, Chizhikova IO analyzed the literature, conducted the experimental part of the study and contributed to writing the manuscript; Lazishvili GD, Ratiev AP, But-Gusaim AB analyzed the literature and contributed to writing the manuscript.