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Figure 6 Responses to Graded Doses of Angiotensin II in Patients Without (Groups 1 and 2) and With Heart Failure (Group 3)
The upper panel shows changes in the stroke work index (SWI) plotted versus the left ventricular end-diastolic (LVED) pressure. The lower panel shows changes in the stroke volume index (SVI) plotted versus the LV systolic pressure in the same groups of patients. Reprinted with permission from Ross and Braunwald (14). For discussion of groups and responses see text.
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