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Mean arterial pressure (mean and 95% confidence interval) according to group and time. Horizontal axis: 0 (baseline), 15, 30, 60, 90, 120 minutes, and at Postanesthesia Care Unit (PACU). Variable group (p = 0.59); variable time (p = 0.000); variable time versus group (p = 0.73). Generalized estimating equations model.
