title: [Role of myocardial contraction and valvular apparatus in formation of sound 1 and sound of opening in patients with mitral defects of the heart].
mesh_terms: D006326:Heart Auscultation; D006347:Heart Sounds; D006352:Heart Ventricles / Q000503:physiopathology; D006801:Humans; D008943:Mitral Valve / Q000503:physiopathology*; D008946:Mitral Valve Stenosis / Q000503:physiopathology*; D009200:Myocardial Contraction
vernacular_title: Rol'sokratitel'noĭ funktsii miokarda i klapannogo apparata v formirovanii 1 tona i tona otkrytiia u bol'nykh s mitral'nym porokom serdtsa