[Radio-phonocardiographic study on shortening of q-iia interval during exercise tests in diseases].
D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D008297:Male; D008659:Metabolic Diseases / Q000503:physiopathology*; D008875:Middle Aged; D010701:Phonocardiography / Q000295:instrumentation; D005082:Physical Exertion; D013686:Telemetry; D013997:Time Factors