1. From the Department of Surgery, Division Surgical Oncology, and Department of Medical Oncology, Erasmus University Medical Center–Daniel den Hoed Cancer Center, Rotterdam; Department of Medical Oncology, Radboud University Nijmegen Medical Center, Nijmegen, the Netherlands; Statistics Department, European Organisation for Research and Treatment of Cancer (EORTC) Headquarters; Department of Surgery, Institut Jules Bordet, Brussels, Belgium; Department of Surgery, European Institute of Oncology; Department...