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Figure 2 A, Echocardiographic LV mass normalized to body weight at 6 and 20 weeks after aortic banding in male and female rats. While this ratio tended to decrease in male rats, it continued to increase in female rats. B, In vivo LV systolic pressure 6 and 20 weeks after aortic banding in male and female rats. While LV pressure increased in females, it tended to decrease in males. Open squares = female; solid squares = male.