1. University of Birmingham; Institute of Applied Health Research; Birmingham UK B15 2TT
2. University Hospitals Birmingham NHS Foundation Trust and University of Birmingham; NIHR Birmingham Biomedical Research Centre; Birmingham UK
3. Churchill Hospital; Department of Dermatology; Old Road Headington Oxford UK OX3 7LE
4. Oxford University Hospitals NHS Foundation Trust; Department of Plastic and Reconstructive Surgery; Oxford UK
5. NHS Lothian/University of Edinburgh; Department of Plastic Surgery; 25/6 India Street Edinburgh UK EH3 6HE
6. Addenbrooke’s Hospital, Cambridge University Hospitals NHS Foundation Trust; Dermatology; Hills Road Cambridge UK CB2 0QQ
7. Barts Health NHS Trust; Department of Dermatology; Whitechapel London UK E11BB
8. City Hospital; Birmingham Skin Centre; Dudley Rd Birmingham UK B18 7QH
9. NIHR Diagnostic Evidence Co-operative Newcastle; 2nd Floor William Leech Building (Rm M2.061) Institute of Cellular Medicine Newcastle University Framlington Place Newcastle upon Tyne UK NE2 4HH
10. The University of Nottingham; Division of Epidemiology and Public Health; Clinical Sciences Building Nottingham City Hospital NHS Trust Campus, Hucknall Road Nottingham UK NG5 1PB
11. The University of Nottingham; c/o Cochrane Skin Group; Nottingham UK
12. Whiston Hospital; Department of Plastic and Reconstructive Surgery; Warrington Road Liverpool UK L35 5DR
13. University of Nottingham; Centre of Evidence Based Dermatology; Queen's Medical Centre Derby Road Nottingham UK NG7 2UH