title: The separate needle is superior to the needle-through-needle technique for combined spinal epidural anaesthesia.
authors.forename: T M
authors.initials: TM
authors.lastname: Cook
mesh_terms: D000767:Anesthesia, Epidural / Q000379:methods*; D000775:Anesthesia, Spinal / Q000379:methods*; D006801:Humans; D009339:Needles