1. Department of Surgical Oncology, Erasmus Medical Centre Cancer Institute, Rotterdam, The Netherlands
2. Department of Surgical Oncology, Institut de Cancérologie Gustave Roussy, Paris, France
3. Department of Surgery, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
4. Gustave Roussy Cancer Campus Grand Paris, Villejuif, Paris, France