[1] Univ Hosp Siena, Radiat Oncol Unit, Siena, Italy
[2] Grand Metropolitan Hosp Bianchi Melacrino Morelli, Med Oncol Unit, Reggio Di Calabria, Italy
[3] Temple Univ, Sbarro Hlth Res Org, Philadelphia, PA 19122 USA
[4] Temple Univ, Coll Sci & Technol, Dept Biol, Philadelphia, PA 19122 USA
[5] Univ Siena, Dept Med Surg & Neurosci, Siena, Italy
[6] Magna Graecia Univ Catanzaro, Dept Expt & Clin Med, Catanzaro, Italy
[7] Azienda Osped Univ Mater Domini, Med Oncol Unit, Catanzaro, Italy