title: [RHEUMATIC HEART DISEASE IN MIDDLE AND OLD AGES].
mesh_terms: D005853:Geriatrics; D008875:Middle Aged; D012214:Rheumatic Heart Disease; D013223:Statistics as Topic
keywords: GERIATRICS; MIDDLE AGE; RHEUMATIC HEART DISEASE; STATISTICS
vernacular_title: REVMATICHESKIE POROKI SERDTSA U LITS SREDENEGO I POZHILOGO VOZRASTA.