title: Thunderclap headache with normal CT and lumbar puncture: further investigations are unnecessary: against.
authors.affiliation: Department of Neurology, Thomas Jefferson University Hospital, Philadelphia, Pa., USA
authors.forename: Michael
authors.initials: M
authors.lastname: Moussouttas
authors.forename: Stephan A
authors.initials: SA
authors.lastname: Mayer
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; D019564:Unnecessary Procedures