title: [Frequency characteristics and sonic energy of heart tones in patients in the early stages of coronary arteriosclerosis].
mesh_terms: D000328:Adult; D000368:Aged; D003327:Coronary Disease / Q000175:diagnosis / Q000503:physiopathology*; D006321:Heart / Q000503:physiopathology*; D006326:Heart Auscultation; D006801:Humans; D008875:Middle Aged
vernacular_title: O chastotnoĭ kharakteristike i zvukovoĭ énergii tonov serdtsa u bol'nykh v rannikh stadiiakh koronarnogo ateroskleroza.