title: Luers, ethics, research and service evaluation: even more shades of grey?
authors.forename: T M
authors.initials: TM
authors.lastname: Cook
mesh_terms: D000775:Anesthesia, Spinal / Q000295:instrumentation*; D004869:Equipment Safety / Q000295:instrumentation*; D006801:Humans; D007278:Injections, Spinal / Q000295:instrumentation*