title: Modified Blalock-Taussig operation using polytetrafluoroethylene (Impra) grafts.
authors.affiliation: Department of Morbid Anatomy, The London Hospital, London E1 1BB.
authors.forename: S E
authors.initials: SE
authors.lastname: Greenwald
authors.forename: C L
authors.initials: CL
authors.lastname: Berry
authors.forename: P H
authors.initials: PH
authors.lastname: Kay
authors.forename: R E
authors.initials: RE
authors.lastname: Franks
authors.forename: A
authors.initials: A
authors.lastname: Capuani
authors.forename: C
authors.initials: C
authors.lastname: Lincoln