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Figure 1 :Comparison of heart rate between the two groups. Columns are mean and bars are standard deviation, T1 (baseline), T2 (5 minutes after intubation), T3 (5 minutes after sternotomy), T4 (on CPB at the time of maximum cooling), T5 (sternal closure), T6 (4 hours after intubation) and T7 (24 hours after intubation)

Figure 1 :Comparison of heart rate between the two groups. Columns are mean and bars are standard deviation, T1 (baseline), T2 (5 minutes after intubation), T3 (5 minutes after sternotomy), T4 (on CPB at the time of maximum cooling), T5 (sternal closure), T6 (4 hours after intubation) and T7 (24 hours after intubation)