title: Is it ethically correct to study the Quincke spinal needle in obstetric patients?
authors.forename: Christopher M B
authors.initials: CM
authors.lastname: Heard
authors.forename: James E
authors.initials: JE
authors.lastname: Fletcher
mesh_terms: D000773:Anesthesia, Obstetrical / Q000009:adverse effects*; D000775:Anesthesia, Spinal / Q000009:adverse effects*; D004992:Ethics, Medical; D005260:Female; D006261:Headache; D006801:Humans; D009339:Needles / Q000009:adverse effects*; D011247:Pregnancy; D016032:Randomized Controlled Trials as Topic; D013129:Spinal Puncture / Q000009:adverse effects / Q000295:instrumentation