Singer, M Effects of alterations in left ventricular filling, contractility, and systemic vascular resistance on the ascending aortic blood velocity waveform of normal subjects. [electronic resource] - Critical care medicine Sep 1991 - 1138-45 p. digital Publication Type: Journal Article ISSN: 0090-3493 Standard No.: 10.1097/00003246-199109000-00008 doi Subjects--Topical Terms: Adrenergic beta-Antagonists--pharmacologyAorta--drug effectsBlood Flow Velocity--drug effectsBlood Pressure--drug effectsDobutamine--pharmacologyEchocardiography, Doppler--instrumentationHumansMethoxamine--pharmacologyMyocardial Contraction--drug effectsPhentolamine--pharmacologyPropanolamines--pharmacologyReference ValuesTransducersVascular Resistance--drug effectsVentricular Function, Left--drug effects