title: Needle characteristics related to headaches after myelograms.
authors.forename: J N
authors.initials: JN
authors.lastname: Suojanen
authors.forename: S T
authors.initials: ST
authors.lastname: Punzak
mesh_terms: D006261:Headache / Q000453:epidemiology / Q000209:etiology*; D006801:Humans; D015994:Incidence; D009192:Myelography / Q000009:adverse effects / Q000295:instrumentation*; D009339:Needles; D012307:Risk Factors; D013129:Spinal Puncture / Q000009:adverse effects / Q000295:instrumentation