title: Lumbar puncture headache; a statistical analysis of five hundred punctures.
authors.forename: L J
authors.initials: LJ
authors.lastname: UNDERWOOD
mesh_terms: D001699:Biometry; D006261:Headache; D006801:Humans; D051299:Post-Dural Puncture Headache; D011677:Punctures; D013129:Spinal Puncture; D013587:Syphilis / Q000453:epidemiology* / Q000706:statistics & numerical data*; D013588:Syphilis Serodiagnosis