1. Department of Dermatology Royal London Hospital Barts Health NHS Trust London UK
2. Centre for Cell Biology and Cutaneous Research, Blizard Institute, Barts and the London School of Medicine and Dentistry Queen Mary University London London UK
3. Centre for Evidence Based Healthcare Division of Epidemiology and Public Health Clinical Sciences Building Phase 2 University of Nottingham Nottingham UK
4. Centre of Evidence Based Dermatology University of Nottingham Nottingham UK
5. Emeritus Professor Evidence Based Health Care University of Nottingham Nottingham UK