Acetazolamide enhanced single photon emission computed tomography (SPECT) evaluation of cerebral perfusion before and after carotid endarterectomy - Cikrit, DF; Burt, RW; Dalsing, MC; Lalka, SG; Sawchuk, AP; Waymire, B; Witt, RM (J Vase Surg, 1992)