1. From the Weston Park Hospital, Sheffield; Christie Hospital, Manchester; St James's University Hospital, Leeds, United Kingdom; Erasmus University Medical Center, Rotterdam; The Netherlands Cancer Institute, Amsterdam; University Medical Centre, Leiden, the Netherlands; National Institute of Oncology; National Medical Center, Budapest, Hungary; Institut Gustave Roussy, Villejuif; Centre Léon Bérard, Lyon, France; and the European Organisation for Research and Treatment of Cancer (EORTC) Data Center,...