The effect of the Valsalva manoeuvre on cardiac vibrations. A phonocardiographic study.
D000293:Adolescent; D000328:Adult; D002648:Child; D005260:Female; D006326:Heart Auscultation; D006331:Heart Diseases / Q000175:diagnosis*; D006801:Humans; D008297:Male; D008875:Middle Aged; D010701:Phonocardiography; D014636:Valsalva Maneuver