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The survival rates (A) and CBF values (B) in each group after surgery. The data are presented as the mean ± SD and expressed as percentages of the preoperative value. *P < 0.05 and **P < 0.01 compared with the control group using Dunnett’s multiple comparison test. CBF, cerebral blood flow; BCAS, bilateral common carotid artery stenosis; BCAO, bilateral common carotid artery occlusion; SD, standard deviation.
