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Box plots of linear regression slopes between percentage changes in cerebrovascular resistance indices (ΔCVRi%) and mean arterial pressure (ΔMAP%) at the middle cerebral artery (MCA) and internal carotid artery (ICA) (open boxes), and between percentage changes in cerebrovascular resistance (ΔCVR%) and ΔMAP% at the ICA (filled box). The horizontal dotted and solid lines within the box represent the mean and median, respectively. *P < 0.01.
