title: A modified Dawkins epidural indicator: a useful teaching aid.
mesh_terms: D000767:Anesthesia, Epidural / Q000295:instrumentation*; D000776:Anesthesiology / Q000193:education*; D004501:Education, Medical; D005069:Evaluation Studies as Topic; D006801:Humans; D007278:Injections, Spinal / Q000295:instrumentation*