title: How can PET scans help us understand headache mechanisms?
authors: Department of Neurology, University of Essen, Germany.
authors: H C
authors: HC
authors: Diener
mesh_terms: D001921:Brain / Q000098:blood supply / Q000187:drug effects; D001931:Brain Mapping; D006801:Humans; D008881:Migraine Disorders / Q000000981:diagnostic imaging* / Q000188:drug therapy / Q000503:physiopathology; D012680:Sensitivity and Specificity; D014055:Tomography, Emission-Computed