title: A 'foreign body' in the circuit filter.
authors.forename: K
authors.initials: K
authors.lastname: Ramachandran
authors.forename: S
authors.initials: S
authors.lastname: Chadwick
authors.forename: G
authors.initials: G
authors.lastname: Robson
mesh_terms: D000764:Anesthesia, Closed-Circuit / Q000295:instrumentation*; D004868:Equipment Failure; D004869:Equipment Safety; D005374:Filtration / Q000295:instrumentation; D006801:Humans