title: Productivity variation persists in the NHS.
authors.forename: Andrew
authors.initials: A
authors.lastname: Street
authors.forename: Adriana
authors.initials: A
authors.lastname: Castelli
mesh_terms: D017598:Efficiency, Organizational; D006779:Hospitals, Public / Q000191:economics / Q000592:standards*; D012052:Reimbursement, Incentive; D013222:State Medicine