title: Are the two long prongs of the Mallinckrodt double-lumen endobronchial tube necessary?
authors.forename: T
authors.initials: T
authors.lastname: Inada
authors.forename: F
authors.initials: F
authors.lastname: Uesugi
authors.forename: S
authors.initials: S
authors.lastname: Kawachii
mesh_terms: D020680:Bronchoscopes; D002406:Catheterization, Peripheral / Q000295:instrumentation*; D004867:Equipment Design; D006801:Humans