John is working with Andrée le May as the joint ARC Implementation Lead. A 1974 Manchester medical graduate, he spent several years in Cambridge researching and teaching on the social construction of medical knowledge in an historical context before specialising in public health. Whilst foundation director (1992-2004) of the Wessex Institute at the University of Southampton, which provided research-based intelligence to local public health practitioners, he also directed the NHS National Coordinating Centre for Health Technology Assessment. His research has mainly focussed on the ways in which health professionals use research-based knowledge to inform their policy and practice, including (with Andrée le May) the development of the concept of ‘clinical mindlines’, which has become a widely-cited way of understanding how clinicians are able to deal with the contextual complexities of care that are not amenable to published guidelines. He is Emeritus Professor of Public Health at the University of Southampton, Honorary Senior Visiting Fellow at the Institute of Public Health, University of Cambridge, and a Senior Member of Darwin College, Cambridge.