title: Blocked ear after extradural injection--a clarification.
authors.forename: A G
authors.initials: AG
authors.lastname: Gordon
mesh_terms: D004427:Ear Diseases / Q000209:etiology*; D004487:Edema / Q000209:etiology; D006801:Humans; D007268:Injections, Epidural / Q000009:adverse effects*