title: Metallic fragments and the combined spinal-extradural technique.
authors: L E
authors: LE
authors: Carrie
mesh_terms: D000767:Anesthesia, Epidural / Q000295:instrumentation*; D000775:Anesthesia, Spinal / Q000295:instrumentation*; D004868:Equipment Failure; D005547:Foreign Bodies / Q000209:etiology*; D006801:Humans; D009339:Needles / Q000009:adverse effects