1. Dermatology Unit Department of Surgical Medical, Dental and Morphological Sciences related to Transplant, Oncology and Regenerative Medicine University of Modena and Reggio Emilia Modena Italy
2. Porphyria and Rare Diseases Unit San Gallicano Dermatological Institute ‐ IRCCS Rome Italy
3. Dermatology and Skin Cancer Unit First Medical Department Arcispedale Santa Maria Nuova Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Reggio Emilia Italy
4. Department of Medicine and Surgery University of Insubria Varese Italy
5. Dermatology Clinic Department of Clinical Internal, Anesthesiological and Cardiovascular Sciences Sapienza University of Rome Rome Italy