title: Incidence of Horner syndrome with interscalene brachial plexus block and its importance in the management of head injury.
mesh_terms: D001917:Brachial Plexus; D006259:Craniocerebral Trauma / Q000601:surgery*; D006732:Horner Syndrome / Q000209:etiology*; D006801:Humans; D009407:Nerve Block / Q000009:adverse effects*