Nuffield Trust is an authoritative and independent source of evidence-based research and policy analysis for improving health care in the UK. We aim to help provide the evidence base for better health care. Our work programme focuses on a number of key areas in which we have expertise. Full details and a range of resources including publications (free to download, with printed copies available to purchase via lulu), talks, blogs and data are available at www.nuffieldtrust.org.uk .