RT Journal Article SR Electronic T1 Cost-Effectiveness Analysis of Therapy for Symptomatic Carotid Occlusion: PET Screening Before Selective Extracranial-to-Intracranial Bypass Versus Medical Treatment JF Journal of Nuclear Medicine JO J Nucl Med FD Society of Nuclear Medicine SP 800 OP 807 VO 41 IS 5 A1 Colin P. Derdeyn A1 Brian F. Gage A1 Robert L. Grubb, Jr. A1 William J. Powers YR 2000 UL http://jnm.snmjournals.org/content/41/5/800.abstract AB