1. From the Hospital of Prato, Prato, Italy; Centre Hospitalier Universitaire Sart Tilman, Liège; AZ. Klina, Brasschaat, Belgium; Charles University, Prague, Czech Republic; Instituto Nacional del Cáncer, Santiago, Chile; Dnipropetrovsk Municipal Clinical Hospital, Dnipropetrovsk, Ukraine; Republican Clinical Oncological Center, Kazan; Medical Radiological Science Center, Obninsk; Russian Cancer Research Centre, Moscow, Russia; Hospital Nossa Senhora da Conceição, Porto Alegre, Brazil; Kansas City Cancer...