Author information:
(1)Medical Oncology Department, Campus Bio-Medico, University of Rome, Rome, 
Italy.
(2)Department of Surgical, Oncological and Oral Sciences, Section of Medical 
Oncology, Palermo University Hospital, Palermo, Italy.
(3)Division of Medical Oncology, Candiolo Cancer Institue-FPO, IRCCS, Candiolo, 
Italy.
(4)Department of Surgical, Oncological and Oral Sciences, Section of Medical 
Oncology, Palermo University Hospital, Palermo, Italy. Electronic address: 
antonio.russo@usa.net.
(5)Candiolo Cancer Institute-IRCCS, Laboratory of Medical Oncology, Experimental 
Cell Therapy, Candiolo, Turin, Italy.