1. From the Departments of Radiation Oncology, Surgery, and Pathology, Antoni van Leeuwenhoek Hospital, the Netherlands Cancer Institute, Amsterdam, the Netherlands; European Organisation for Research and Treatment of Cancer Data Center, Brussels, Belgium; Department of Surgery, Centre Henri Becquerel, Rouen; Department of Surgery, CRLC Val D'Aurelle, Montpellier; Department of Surgery, Institut Bergonié, Bordeaux, France; Department of Surgery, Istituto Nazionale dei Tumori, Milan, Italy; and the...