1. Unit of Oral Pathology, Dental Clinic, ASST Sette Laghi, Ospedale di Circolo, Department of Medicine and Surgery; University of Insubria; Varese Italy
2. Unit of Anatomical Pathology, ASST Sette Laghi; Ospedale di Circolo; Varese Italy
3. Unit of Dermatological Diseases, ASST Sette Laghi; Ospedale di Circolo; Varese Italy
4. Department of Dermatology; Medical University of Warsaw; Warsaw Poland