[Effect of physical effort on the phonocardiogram in healthy and sick subjects].
D000328:Adult; D006321:Heart / Q000503:physiopathology*; D006331:Heart Diseases / Q000503:physiopathology*; D006801:Humans; D010701:Phonocardiography; D005082:Physical Exertion / Q000502:physiology*
Vliianie fizicheskoĭ nagruzki na fonokardiogrammu zdorovykh i bol'nykh.