title: Primary angiitis of the central nervous system: reflections on 20 years of investigation.
authors: L H
authors: LH
authors: Calabrese
mesh_terms: D001706:Biopsy; D002533:Cerebral Angiography; D003937:Diagnosis, Differential; D006801:Humans; D018810:Magnetic Resonance Angiography; D009460:Neurologic Examination / Q000379:methods; D010348:Patient Care Team; D014057:Tomography, X-Ray Computed; D020293:Vasculitis, Central Nervous System / Q000175:diagnosis* / Q000503:physiopathology