title: Lumbar plexus or lumbar paravertebral blocks?
authors.forename: Bruce
authors.initials: B
authors.lastname: Ben-David
authors.forename: Edward M
authors.initials: EM
authors.lastname: Lee
mesh_terms: D006801:Humans; D008160:Lumbosacral Plexus / Q000187:drug effects / Q000502:physiology; D008161:Lumbosacral Region; D009407:Nerve Block / Q000191:economics / Q000295:instrumentation / Q000379:methods*