title: Validation of The Hospital Episode Statistics Outpatient Dataset in England.
authors.affiliation: University of Bristol, Bristol, UK.
authors.forename: J C
authors.initials: JC
authors.lastname: Thorn
authors.affiliation: University of Bristol, Bristol, UK.
authors.forename: E
authors.initials: E
authors.lastname: Turner
authors.affiliation: Public Health England, Bristol, UK.
authors.forename: L
authors.initials: L
authors.lastname: Hounsome
authors.affiliation: University of Bristol, Bristol, UK.
authors.forename: E
authors.initials: E
authors.lastname: Walsh
authors.affiliation: University of Bristol, Bristol, UK.
authors.forename: L
authors.initials: L
authors.lastname: Down
authors.affiliation: University of Bristol, Bristol, UK.
authors.forename: J
authors.initials: J
authors.lastname: Donovan
authors.affiliation: Public Health England, Bristol, UK.
authors.forename: J
authors.initials: J
authors.lastname: Verne
authors.affiliation: University of Cambridge, Cambridge, UK.
authors.forename: D
authors.initials: D
authors.lastname: Neal
authors.affiliation: University of Oxford, Oxford, UK.
authors.forename: F
authors.initials: F
authors.lastname: Hamdy
authors.affiliation: University of Bristol, Bristol, UK.
authors.forename: R M
authors.initials: RM
authors.lastname: Martin
authors.affiliation: University of Bristol, Bristol, UK.
authors.forename: S
authors.initials: S
authors.lastname: Noble