Fig 3. Cerebral blood flow (mean ± SEM) in the regions of the hemisphere ipsi- and contralateral to the occlusion and of the control group. Asterisk indicates P < .05; double asterisks, P < .01, a significant difference between the hemisphere ipsilateral to the ICA occlusion and the control subjects; number sign, a significant (P < .05) difference between the hemisphere contralateral to the ICA occlusion and the control subjects.