title: Upper airways obstruction.
authors.forename: E L
authors.initials: EL
authors.lastname: Lloyd
mesh_terms: D000402:Airway Obstruction / Q000628:therapy*; D016887:Cardiopulmonary Resuscitation / Q000379:methods*; D006801:Humans; D007442:Intubation, Intratracheal / Q000379:methods; D012680:Sensitivity and Specificity; D014139:Tracheostomy / Q000379:methods