Affiliation: | 1. Specialist Registrar in Oral and Maxillofacial Pathology. Guy''s and St Thomas’ NHS Foundation Trust, London, UK;2. University Dental Hospital of Manchester, Manchester University NHS Foundation Trust, Manchester, England;3. Consultant in Dermatology, Sheffield Teaching Hospitals NHS Foundation Trust, Royal Hallamshire Hospital, Sheffield, England;4. Oral Medicine, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, England |