1. Plastic and Reconstructive Surgery Unit, Fondazione IRCCS Istituto Nazionale Tumori, Milan, Italy
2. Unit of Bioinformatics and Biostatistics, Department of Applied Research and Technological Development, Fondazione IRCCS Istituto Nazionale Tumori Milan, Italy
3. Department of Melanoma Surgery, Fondazione IRCCS Istituto Nazionale Tumori, Milan, Italy