title: [New onset headache. Which patients should be sent for CT imaging?].
mesh_terms: D000208:Acute Disease; D001927:Brain Diseases / Q000000981:diagnostic imaging*; D003937:Diagnosis, Differential; D004334:Drug Administration Schedule; D006261:Headache / Q000000981:diagnostic imaging / Q000209:etiology*; D006801:Humans; D008881:Migraine Disorders / Q000000981:diagnostic imaging / Q000188:drug therapy / Q000209:etiology*; D014057:Tomography, X-Ray Computed; D014230:Triazoles / Q000008:administration & dosage; D014363:Tryptamines
chemical_list: D014230:Triazoles; D014363:Tryptamines; C093622:rizatriptan