title: If it hasn't failed, does it work? On 'the worst we can expect' from observational trial results, with reference to airway management devices.
authors.forename: J J
authors.initials: JJ
authors.lastname: Pandit
mesh_terms: D058109:Airway Management / Q000009:adverse effects / Q000295:instrumentation*; D002986:Clinical Trials as Topic; D016001:Confidence Intervals; D003627:Data Interpretation, Statistical; D023381:Endpoint Determination; D004868:Equipment Failure; D006801:Humans; D012107:Research Design; D018401:Sample Size