1. Plastic and Reconstructive Surgery Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Milano, Italy
2. Department of Pathology, Fondazione IRCCS Istituto Nazionale Tumori, Milano University of Milan, School of Medicine, Milano, Italy
3. Unit of Bioinformatics and Biostatistics, Department of Applied Research and Technological Development Fondazione IRCCS Istituto Nazionale Tumori, Milano, Italy