[A new method of investigation--ultrasound valvulocardiography and its diagnostic value in diseases of the heart].
D006331:Heart Diseases / Q000175:diagnosis*; D006801:Humans; D008722:Methods; D008946:Mitral Valve Stenosis / Q000175:diagnosis*; D014463:Ultrasonography
Novyĭ metod issledovaniia--ul'trazvukovaia val'vuloiardiografiia i ee diagnosticheskaia tsennost' pri porokakh serdtsa.