1. Department of Surgery University of Toronto Toronto ON Canada
2. Department of Surgery Fondazione IRCCS Istituto Nazionale Tumori Milan Italy
3. Department of Surgery, Brigham and Women's Hospital, Dana‐Farber Cancer Institute Harvard Medical School Boston Massachusetts USA
4. Department of Surgical Oncology The University of Texas MD Anderson Cancer Center Houston Texas USA
5. Department of Surgery University of Washington Seattle Washington USA
6. Department of Radiation Oncology Gustave Roussy Villejuif France
7. Medical Oncology Department in University Hospital Virgen del Rocio and Institute of Biomedicine of Sevilla (IBIS) (HUVR, CSIC) University of Sevilla Sevilla Spain