title: Ventilators, circle systems and respirometers.
authors.forename: C M
authors.initials: CM
authors.lastname: Thorpe
mesh_terms: D000764:Anesthesia, Closed-Circuit; D006801:Humans; D015656:Respiratory Mechanics / Q000502:physiology*; D013990:Tidal Volume; D012122:Ventilators, Mechanical