Clinical and molecular determinants of extrahepatic disease progression in patients with metastatic colorectal cancer with liver-limited metastases deemed initially unresectable oleh Vincenzo Mazzaferro, Chiara Cremolini, Filippo Pagani, Daniele Rossini, Beatrice Borelli, Elena Ongaro, Filippo de Braud, Alfredo Falcone, Francesca Corti, Luca Morelli, Lucio Urbani, Gianluca Masi, Carlo Sposito, Beatrice Filippi, Gemma Zucchelli, Roberto Moretto, Alessandra Boccaccino, Leonardo Solaini, Alessandro Cucchetti