title: [Difficulties in diagnosing mitral valve diseases].
authors.forename: V I
authors.initials: VI
authors.lastname: Makolkin
mesh_terms: D006349:Heart Valve Diseases / Q000150:complications / Q000175:diagnosis; D006801:Humans; D008943:Mitral Valve
vernacular_title: Trudnosti diagnostiki mitral'nykh porokov serdtsa.