1. Porphyria and Rare Diseases Unit San Gallicano Dermatological Institute – IRCCS Rome Italy
2. Dermatology Service Memorial Sloan Kettering Cancer Center New York City New York USA
3. Department of Otolaryngology‐Head and Neck Surgery Regina Elena National Cancer Institute – IRCCS Rome Italy
4. The Sydney Melanoma Diagnostic Centre, Royal Prince Alfred Hospital Melanoma Institute Australia, and the University of Sydney Sydney New South Wales Australia