1. Centre of Evidence Based Dermatology; University of Nottingham; King's Meadow Campus Lenton Lane Nottingham NG7 2NR U.K
2. Division of Primary Care; University of Nottingham; King's Meadow Campus Lenton Lane Nottingham NG7 2NR U.K
3. Department of Dermatology; Nottingham University Hospitals; Nottingham U.K