Improving data quality in a UK out-of-hospital cardiac arrest registry through data linkage between the Out-of-Hospital Cardiac Arrest Outcomes (OHCAO) project and NHS Digital. (September 2017) - Rajagopal, Sangeerthana; Booth, Scott; Brown, Terry; Ji, Chen; Hawkes, Claire; Siriwardena, A. Niroshan; Kirby, Kim; Black, Sarah; Spaight, Robert; Gunson, Imogen; Brace-McDonnell, Samantha; Perkins, Gavin