Affiliation: | 1. Department of Dermatology, Norfolk and Norwich University Hospital, Colney Lane, Norwich, NR4 7UY U.K;2. National Cancer Registration Service, Public Health England, Unit C, Magog Court, Shelford Bottom, Hinton Way, Cambridge, CB22 3AD U.K;3. Department of Pathology, Norfolk and Norwich University Hospital, Colney Lane, Norwich, NR4 7UY U.K |