1. Department of Dermatology; Hôpital Erasme; Université Libre de Bruxelles; Brussels Belgium
2. Molecular and Pharmaco-Epidemiology Unit, Department of Experimental Oncology; European Institute of Oncology, IRCCS; Milan Italy
3. Institute of Social and Preventive Medicine (IUMSP); Lausanne University Hospital; Lausanne Switzerland
4. Centro de Dermatologia Epidermis; Instituto CUF; Porto Portugal
5. Portuguese Skin Cancer Association; Lisbon Portugal
6. Center for Health Technology and Services Research (CINTESIS); Basic and Clinical Immunology Unit; Department of Pathology; Faculty of Medicine; University of Porto; Porto Portugal
7. Department of Community Medicine, Information and Health Decision Sciences (MEDCIDS); Faculty of Medicine; University of Porto; Porto Portugal
8. Institute of Dermatology; Catholic University; Rome Italy
9. First Department of Dermatology; National and Kapodistrian University of Athens School of Medicine; Andreas Sygros Hospital; Athens Greece
10. Department of Dermatology; Instituto Valenciano de Oncología; Universidad Católica de València San Vicente Ferrer; Valencia Spain
11. Department of Dermatology; University of Florida College of Medicine; Gainesville FL USA
12. Clinic of Infectious, Chest Diseases, Dermatovenereology and Allergology; Faculty of Medicine; Vilnius University; Vilnius Lithuania
13. Department of Infectiology and Dermatology; Riga Stradins University; Riga Latvia
14. Dermatology Department; Clinical Center; University of Sarajevo; Sarajevo Bosnia & Herzegovina