title: A new leak test for specifying malfunctions in the exhalation and inhalation check valve.
authors.forename: H
authors.initials: H
authors.lastname: Kitagawa
authors.forename: Y
authors.initials: Y
authors.lastname: Sai
authors.forename: S
authors.initials: S
authors.lastname: Nosaka
authors.forename: Y
authors.initials: Y
authors.lastname: Amakata
authors.forename: S
authors.initials: S
authors.lastname: Oku
mesh_terms: D000764:Anesthesia, Closed-Circuit; D004868:Equipment Failure; D006801:Humans