title: A re-evaluation of the Whitacre spinal needle in obstetric anaesthesia--a pilot study.
authors.forename: T A
authors.initials: TA
authors.lastname: Thomas
authors.forename: H A
authors.initials: HA
authors.lastname: Noble
mesh_terms: D000773:Anesthesia, Obstetrical / Q000295:instrumentation*; D000775:Anesthesia, Spinal / Q000295:instrumentation*; D005069:Evaluation Studies as Topic; D005260:Female; D006801:Humans; D009339:Needles; D010865:Pilot Projects; D011247:Pregnancy