title: Thunderclap headache: CT and lumbar puncture but occasionally more!
authors.affiliation: Royal Melbourne Hospital, Melbourne Neuroscience Centre, Parkville, Australia. Stephen.davis@mh.org.au
authors.forename: Stephen M
authors.initials: SM
authors.lastname: Davis
authors.forename: Geoffrey A
authors.initials: GA
authors.lastname: Donnan
mesh_terms: D003937:Diagnosis, Differential; D051270:Headache Disorders, Primary / Q000000981:diagnostic imaging* / Q000209:etiology; D006801:Humans; D013129:Spinal Puncture; D013345:Subarachnoid Hemorrhage / Q000150:complications / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed