title: High airway pressures with sticking one-way valves in a circle system.
authors.forename: R A
authors.initials: RA
authors.lastname: Johnson
authors.forename: L A
authors.initials: LA
authors.lastname: Vries
mesh_terms: D000368:Aged; D000399:Air Pressure; D000764:Anesthesia, Closed-Circuit / Q000295:instrumentation*; D004868:Equipment Failure; D005260:Female; D006801:Humans