title: Single-use 'pencil point' needles that develop a 'concorde nose' are not Whitacre needles.
authors.forename: D C
authors.initials: DC
authors.lastname: Moore
mesh_terms: D000775:Anesthesia, Spinal / Q000295:instrumentation*; D004209:Disposable Equipment; D004867:Equipment Design; D006801:Humans; D009339:Needles