1 Unit of Secondary Prevention, Institute for Cancer Research, Prevention and Clinical Network (ISPRO), Florence, Italy.
2 Unit of Plastic and Reconstructive Surgery, Regional Melanoma Referral Center, S.M. Annunziata Hospital, AUSL Toscana Centro, Florence, Italy.
3 Section of Dermatology, Department of Medical, Surgical Sciences and Neurosciences, AUSL Toscana Sud-Est, Siena, Italy.
4 Department of Dermatology, AUSL Toscana Centro, Prato Hospital, Prato, Italy.
5 Unit of Dermatology, S. Jacopo Hospital, AUSL Toscana Centro, Pistoia, Italy.
6 Unit of Dermatology, Misericordia Hospital Grosseto, AUSL Toscana Sud-Est, Grosseto, Italy.
7 Unit of Dermatology, S. Luca Hospital, AUSL Toscana Nord-Ovest, Lucca, Italy.
8 Department of Surgery and Translational Medicine, University of Florence, Florence, Italy.
9 Unit of Dermatology, AUSL Toscana Nord-Ovest, Massa, Massa Carrara, Italy.
10 Romagna Cancer Registry, Romagna Cancer Institute (IRST) IRCCS, Meldola, Forlì-Cesena, Italy, The originally published version of this article is available online at <a href="https://www.doi.org/10.23736/S0392-0488.17.05584-5">https://www.doi.org/10.23736/S0392-0488.17.05584-5</a>.