Fig. 2From: Effects of stellate ganglion block on early brain injury in patients with subarachnoid hemorrhage: a randomised control trialChanges in the Blood Flow Velocity of MCA and BA in Different Time Periods. Comparison of the changes in the blood flow velocity of MCA (a) and BA (b) in the different time periods. Each bar represents the mean±S.E.M. *** P<0.001, ****P<0.0001Back to article page