1. Cancer Bio-Immunotherapy Unit, Department of Medical Oncology, Centro di Riferimento Oncologico (CRO), Istituto di Ricovero e Cura a Caratiere Scientifico (IRCCS) National Cancer Institute, Aviano;
2. Department of Oncology and Surgical Sciences, University of Padova and Istituto Oncologico Veneto, Padova;
3. Pathology Unit, Unit of Lymphoid Malignancies, San Raffaele Scientific Institute, Milan; and
4. Medical Oncology A, Department of Medical Oncology, CRO, IRCCS National Cancer Institute, Aviano, Italy