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LES characteristics (black bars: control; gray bars: HIE; *P < 0.05; †P < 0.05 for volumetric effect compared with 0.5 ml; ‡P < 0.05 for volumetric effect compared with 0.3- and 0.5-ml infusions). A: LES nadir pressure (left) and LES nadir duration (right); P = 0.3 for comparison of LES nadir pressure. B: volumetric LES relaxation reflex recruitment relationships.
