[Variability in the force of pressing the microphone to the chest and its effect on several phonocardiographic parameters].
D005260:Female; D006801:Humans; D008722:Methods; D010701:Phonocardiography; D012214:Rheumatic Heart Disease / Q000503:physiopathology
Variabel'nost' sily prizhatiia mikrofona k grudnoĭ kletke i ee vliianie na nekotorye parametry FKG.