1. Assistant Professor in Evidence Based Healthcare, Division of Epidemiology and Public Health, University of Nottingham, Nottingham, UK; Clinical Sciences Building, Nottingham City Hospital, Nottingham, UK
2. Research Fellow in Health Economics, Centre for Reviews and Dissemination, University of York, York, UK
3. Consultant in Public Health, Leicester City Council, Leicester, UK; Honorary Senior Lecturer, Department of Health Sciences, University of Leicester, Leicester, UK