1. Dermatology Unit IRCCS Azienda Ospedaliero-Universitaria di Bologna
2. Department of Medical and Surgical Sciences Alma Mater Studiorum University of Bologna Italy
3. Department of Dermatology Department of Dermatology, Perelman School of Medicine at the University of Pennsylvania, Hospital of the University of Pennsylvania Philadelphia PA and Section of Pediatric Dermatology Children's Hospital of Philadelphia Philadelphia PA United States of America
4. Faculdade de Medicina do ABC
5. Hospital do Servidor Pùblico Municipal de São Paolo
6. Dermatology Unit Department of Medicine University of Padova Via Gallucci 4 35121 Padova Italy
7. rivate Dermatology Practice Bellinzona/Lugano Switzerland