title: [Difficulties in diagnosis of rheumatic heart defects in persons over 50].
mesh_terms: D000367:Age Factors; D000368:Aged; D003951:Diagnostic Errors; D006349:Heart Valve Diseases / Q000175:diagnosis*; D006801:Humans; D008875:Middle Aged; D012214:Rheumatic Heart Disease / Q000175:diagnosis*
vernacular_title: O trudnostiiakh diagnostiki revmaticheskikh porokov serdtsa u lits starshe 50 let