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Figure 7 The measured V_w,epi/EDV_B,epi ratios in all 12 dogs in Groups I and II plotted against the individual body weights of the dogs. The regression line and 95% confidence intervals of the regression are shown: no relationship is evident. V_w,epi = the volume within the epicardial shell corresponding to the volume axis intercept of the PRSW relationship; EDV_B,epi = the volume within the epicardial shell corresponding to the baseline, steady-state end-diastolic volume.