title: [Rheumatic fever at the patients of middle-age].
authors.forename: A E
authors.initials: AE
authors.lastname: Ermolin
authors.forename: L M
authors.initials: LM
authors.lastname: Ermolina
mesh_terms: D004452:Echocardiography; D005260:Female; D006349:Heart Valve Diseases / Q000000981:diagnostic imaging* / Q000453:epidemiology* / Q000517:prevention & control; D006801:Humans; D008297:Male; D008875:Middle Aged; D012213:Rheumatic Fever / Q000150:complications* / Q000517:prevention & control; D012214:Rheumatic Heart Disease / Q000000981:diagnostic imaging* / Q000453:epidemiology* / Q000517:prevention & control; D012426:Russia / Q000453:epidemiology