Affiliation: | 1. Department of Dermatology, University of Bologna, Via Massarenti, 1. 40138, Bologna, Italy;2. Instituto de Dermatologia Azulay, Av. Sernambetiba 3300, bloco 01, apt.1802, CEP: 22630–010, Rio de Janeiro, Brazil;3. Department of Dermatology, St George Hospital, University of New South Wales, Sydney, NSW 2217, Australia |