1. The University of Manchester, Salford Royal NHS Foundation Trust; The Dermatology Centre; Stott Lane Salford Manchester UK M6 8HD
2. University of Manchester; Centre for Biostatistics, Institute of Population Health; Manchester Academic Health Science Centre Oxford Road Manchester UK M13 9PL
3. The University of Nottingham; Division of Epidemiology and Public Health; Clinical Sciences Building Nottingham City Hospital NHS Trust Campus, Hucknall Road Nottingham UK NG5 1PB
4. Specialist Registrar; Dermatology Centre; Stott Lane ECCLES Manchester UK M6 8HD