1. Department of Medicine, Institute of Dermatology University of Udine Udine Italy
2. Dermatology Unit IRCCS Azienda Ospedaliero Universitaria di Bologna, Policlinico S. Orsola‐Malpighi Bologna Italy
3. Dermatology Unit University of Campania Luigi Vanvitelli Naples Italy
4. Dermatology Department Hospital Provincial del Centenario de Rosario, Universidad Nacional de Rosario Rosario Argentina
5. Department of Dermatology, Medicine Faculty Ankara University Ankara Turkey