Author contribution: Speshilova SA — study planning, data collection, data analysis, data interpretation, preparation of a draft manuscript, article concept, literature selection and analysis, synthesis of information, writing a text; Sinitsina OA — study planning, data collection, data analysis; Lileeva EG — article concept, literature selection and analysis; Demarina SM — preparing a list of literature; Palyutin ShH — literature selection and analysis, data synthesis, writing a text.