title: A ghost in the machine?
authors.forename: S A
authors.initials: SA
authors.lastname: Thompson
authors.forename: D H
authors.initials: DH
authors.lastname: Scott
authors.forename: G B
authors.initials: GB
authors.lastname: Drummond
mesh_terms: D000764:Anesthesia, Closed-Circuit / Q000295:instrumentation*; D005189:False Positive Reactions; D006801:Humans; D016343:Monitoring, Intraoperative / Q000295:instrumentation*; D010100:Oxygen / Q000032:analysis
chemical_list: D010100:Oxygen