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SBP changes over time in patients randomized to receive either nicardipine or labetalol. Mean percent change and 95% confidence interval (CI), evaluated by Student's T test, relative to presenting blood pressure, during the initial 30 minutes, with the median upper level of target range and median target range indicated by horizontal dotted lines, in patients randomized to receive either nicardipine or labetalol. SBP, systolic blood pressure.
