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Changes in systolic and diastolic blood pressure in each group (n = 35) during induction. Values are mean ± SD. Group C = saline; Group 30 = ephedrine 30 µg/kg; Group 70 = ephedrine 70 µg/kg; Group 110 = ephedrine 110 µg/kg. *P < 0.001 versus preinduction and before intubation levels.
