Affiliation: | The Welsh Institute of Dermatology, Glamorgan House, University Hospital Wales, Heath Park, Cardiff CF14 4XN, UK;St John's Institute of Dermatology, Guy's and St Thomas' NHS Foundation Trust, London SE1 7EH, UK;;and Central Manchester Dermatology centre, Manchester Royal Infirmary, Oxford Road, Manchester M13 9WL, UK E-mail: |