Epstein, E J The 'A' wave of the apex cardiogram in aortic valve disease and cardiomyopathy. [electronic resource] - British heart journal Sep 1968 - 591-605 p. digital Publication Type: Journal Article ISSN: 0007-0769 Standard No.: 10.1136/hrt.30.5.591 doi Subjects--Topical Terms: AdultAgedAortic Valve Insufficiency--physiopathologyAortic Valve Stenosis--physiopathologyBlood PressureCardiac CatheterizationCardiomyopathies--physiopathologyCineangiographyElectrocardiographyFemaleHeart Atria--physiopathologyHeart AuscultationHeart Ventricles--physiopathologyHemodynamicsHumansMaleMiddle AgedPhonocardiography