Screening [electronic resource] : evidence and practice / Angela E. Raffle, Consultant in Public Health, the NHS Screening Programmes, Honorary Senior Lecturer, University of Bristol Medical School: Population Health Sciences, UK, Anne Mackie, Director of Programmes, UK National Screening Committee, Director of Screening Programmes, Public Health England, UK, J.A. Muir Gray, Programmes Director, UK National Screening Committee 1996-2007, Founding Director, the Oxford Centre for Triple Value Healthcare.