1. Istituto di Chirurgia e Laserchirurgia in Dermatologia (I.C.L.I.D.); Milan Italy
2. Italian High Tech Network in Dermatological Sciences; Milan Italy
3. Dermatology Unit; University of Modena and Reggio Emilia; Modena Italy
4. Centro Studi GISED; Fondazione per la Ricerca Ospedale Maggiore; Bergamo Italy
5. Medical School; Sacco Hospital; University of Milan; Milan Italy
6. Dermatology Unit; Azienda Ospedaliera Papa Giovanni XXIII; Bergamo Italy