1. Université François-Rabelais de Tours; Department of Dermatology; Tours France 37044
2. Addenbrooke's Hospital; Department of Dermatology; Hills Road Cambridge UK CB2 0QQ
3. Faculty of Medicine, Cairo University; Department of Dermatology; 13th Abrag Othman Kournish el Maadi Cairo Egypt 11431
4. INSERM 0202, Université François-Rabelais de Tours; Centre d'Investigation Clinique de Tours; 2 boulevard Tonnellé Tours France (Cedex 9) 37044
5. The University of Nottingham; c/o Cochrane Skin Group; A103, King's Meadow Campus Lenton Lane Nottingham UK NG7 2NR
6. Hôpital Henri Mondor; Department of Dermatology; 51 avenue du Général de Lattre de Tassigny Créteil France 94010
7. Université Paris Est Créteil (UPEC); Epidemiology in dermatology and evaluation of therapeutics (EpiDermE) - EA 7379; Créteil France