1 Final Year Medical Student, Department of Dermatology, Salford Royal Hospital, Salford.
2 Registrar, Department of Dermatology, Salford Royal Hospital, Salford.
3 Consultant Dermatologist Department of Dermatology, Salford Royal Hospital, Salford M6 8HD and Senior Lecturer in Dermatology, Centre for Dermatology Research, The University of Manchester, Manchester Academic Health Science Centre, Manchester.