1. Instituto de Dermatologia Professor Rubem David AzulayHospital Santa Casa de Misericórdia do Rio de Janeiro Rio de Janeiro Brazil
2. Dermatology ClinicMaggiore Hospital, University of Trieste Trieste Italy
3. Department of Clinical and Experimental Medicine, Section of DermatologyUniversity of Messina Messina Italy
4. Department of Dermatology and VenereologyUniversity of Graz Graz Austria