title: Unusual cause of circuit failure.
authors: J E
authors: JE
authors: Sturgess
authors: P C
authors: PC
authors: Matthews
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D000769:Anesthesia, Inhalation / Q000295:instrumentation*; D004868:Equipment Failure; D005260:Female; D006801:Humans