title: Anatomic extent of disease: a critical variable in reports of diagnostic accuracy.
authors.forename: W C
authors.initials: WC
authors.lastname: Black
mesh_terms: D015901:Angiography, Digital Subtraction; D006801:Humans; D002532:Intracranial Aneurysm / Q000175:diagnosis*; D018810:Magnetic Resonance Angiography; D012680:Sensitivity and Specificity; D014057:Tomography, X-Ray Computed; D017585:Ultrasonography, Doppler, Transcranial