title: Authors' reply to Sousa-Pinto.
authors.affiliation: London School of Hygiene and Tropical Medicine, London, UK Martin.McKee@lshtm.ac.uk.
authors.forename: Martin
authors.initials: M
authors.lastname: McKee
authors.affiliation: University of Oxford, Oxford, UK.
authors.forename: Pepita
authors.initials: P
authors.lastname: Barlow
authors.affiliation: University of Oxford, Oxford, UK.
authors.forename: David
authors.initials: D
authors.lastname: Stuckler