1. Dermatology Unit IRCCS Azienda Ospedaliero‐Universitaria di Bologna
2. Department of Medical and Surgical Sciences Alma Mater Studiorum University of Bologna, Ital
3. 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 Padova Italy
7. Private Dermatology Practice Bellinzona/Lugano Switzerland