1. From the Institut Gustave Roussy, Villejuif; Centre Léon Bérard, Lyon; Hôpital Saint André, Centre Hospitalier Universitaire de Bordeaux, France; Hospital del Mar, Barcelona, Spain; Ospedaliera Instituto, Milano; Ospedale San Donato, Arezzo, Italy; Charles University Medical School Teaching Hospital, Hradec Králové and Palacký University Medical School and Teaching Hospital, Olomouc, Czech Republic; and F. Hoffmann-La Roche, Basel, Switzerland.