1. Research Triangle Institute-Health Solutions; Williams House, Lloyd Street North Manchester Science Park Manchester UK M15 6SE
2. University of Nottingham; c/o Cochrane Skin Group; King's Meadow Campus Lenton Lane Nottingham UK NG7 2NR
3. The University of Manchester, Salford Royal NHS Foundation Trust; The Dermatology Centre; Stott Lane Salford Manchester UK M6 8HD