1. Department of Dermatology Norfolk and Norwich University Hospital Norwich UK NR4 7UY
2. Public Health England West Wing, Victoria House, Capital Park, Fulbourn Cambridge CB21 5XA
3. Erasmus MC Cancer Institute University Medical Center Rotterdam, The Netherlands, Department of Dermatology – Dr. Molewaterplein 40, 3015 GD, PO Box 2040 3000 CA Rotterdam
4. Department of Research & Development Netherlands Comprehensive Cancer Organization (IKNL), Utrecht, The Netherlands – Godebaldkwartier 419, 3511 DT Utrecht PO Box 19079, 3501 DB Utrecht
5. Department of Pathology Erasmus University Medical Center Rotterdam the Netherlands
6. Barts and the London School and Medicine and Dentistry London UK