Schwammenthal, E Doppler echocardiographic assessment of the pressure gradient during bicycle ergometry in hypertrophic cardiomyopathy. [electronic resource] - The American journal of cardiology Jun 1992 - 1623-8 p. digital Publication Type: Journal Article ISSN: 0002-9149 Standard No.: 10.1016/0002-9149(92)90714-a doi Subjects--Topical Terms: AdultAgedBlood Flow Velocity--physiologyBlood Pressure--physiologyCardiac CatheterizationCardiac Output--physiologyCardiomyopathy, Hypertrophic--diagnostic imagingEchocardiography, DopplerExercise TestFemaleHeart Rate--physiologyHumansMaleMiddle AgedMitral Valve--diagnostic imagingPhysical Exertion--physiologyStroke Volume--physiologySystoleVascular Resistance--physiologyVentricular Function, Left--physiologyVentricular Outflow Obstruction--diagnostic imaging