ISSN Print 2500–1094   
					ISSN Online 2542–1204				
				
				
				BIOMEDICAL JOURNAL OF PIROGOV UNIVERSITY (MOSCOW, RUSSIA)
			
			1 Central clinical hospital of civil aviation, Moscow, Russia
2 Sechenov First Moscow State Medical University, Moscow, Russia
Correspondence should be addressed: Rumisa R. Berihanova
 Severnyy boulevard 1, Moscow, 127566; ur.liam@70aksimur
Author contribution: Berihanova RR — collection and processing of materials, obtained data analysis, writing of the text; Minenko IA — study concept and design.