1. Clinical Effectiveness Unit, Royal College of Surgeons of England, London, UK
2. Mersey Regional Burns, Plastic and Reconstructive Surgery Unit, St Helens and Knowsley Teaching Hospitals NHS Trust, Prescot, UK
3. Department of Health Services Research and Policy, Faculty of Public Health and Policy, London School of Hygiene and Tropical Medicine, London, UK
4. Department of Epidemiology and Public Health, University College Cork, Cork, Ireland
5. Integrated Breast Service, Western Sussex Hospitals NHS Foundation Trust, Worthing Hospital, Worthing, UK
6. Department of General Surgery, James Paget University Hospitals NHS Foundation Trust, Great Yarmouth, UK
7. Norwich Medical School, University of East Anglia, Norwich, UK
8. Department of Plastic Surgery, Sheffield Teaching Hospitals NHS Foundation Trust, Royal Hallamshire Hospital, Sheffield, UK