title: [Echocardiographic study of persons with asymptomatic ECG changes found during a mass epidemiological examination of the population].
mesh_terms: D000328:Adult; D003327:Coronary Disease / Q000175:diagnosis / Q000453:epidemiology*; D004452:Echocardiography; D004562:Electrocardiography; D006801:Humans; D008297:Male; D008403:Mass Screening; D008875:Middle Aged; D009031:Moscow; D014505:Urban Population
vernacular_title: Ekhokardiograficheskoe issledovanie lits s bessimptomnymi izmeneniiami EKG, vyiavlennymi pri massovom épidemiologicheskom obsledovanii naseleniia.