[Narrow-band spectral phonocardiography and the results and amplitude-frequency analysis of cardiac sounds in healthy persons].
D000328:Adult; D006321:Heart / Q000502:physiology*; D006801:Humans; D008722:Methods; D010701:Phonocardiography
Uzkopolosnaia spektral'naia fonokardiografiia i rezul'taty amplitudno-chastotnogo analiza serdechnykh tonov zdorovykh liudeĭ.