1. From the Fondazione IRCCS Istituto Nazionale Tumori, Milan; Ospedale Universitario Santa Maria della Misericordia, Udine, Italy; Hospital Vall d'Hebron and Hospital de San Pau, Barcelona; Istituto Valenciano de Oncologia and Hospital Clinico Universitario de Valencia, Valencia, Spain; Frauenklinik vom Roten Kreuz, Munich, Germany; N.N. Petrov Research Institute of Oncology, St Petersburg; and the N.A. Semashko Central Clinical Hospital, Moscow, Russia.