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Diameter of arterioles in mucosa. Values are expressed as mean ± SD, aP < 0.01, cP < 0.001 vs baseline; bP < 0.01, dP < 0.001 vs sham group. Time points: 1: Baseline; 2: 30 min of CPB; 3: 60 min of CPB; 4: 60 min after weaning off CPB; 5: 120 min after weaning off CPB.
