1. Dobbs Ferry; Skin Medical Research and Diagnostics; New York NY USA
2. Dermatology and Skin Cancer Unit; IRCCS Arcispedale Santa Maria Nuova; Reggio Emilia Italy
3. Department of Dermatology; University of Modena and Reggio Emilia; Modena Italy
4. Department of Pathology; University of Modena and Reggio Emilia; Modena Italy
5. Dermatology Service; Memorial Sloan Kettering Cancer Center; New York NY USA