[1] E Carolina Univ, Dept Microbiol & Immunol, Greenville, NC 27858 USA
[2] E Carolina Univ, Dept Phys, Greenville, NC 27858 USA
[3] Jagiellonian Univ, Coll Med, Dept Med Biochem, Krakow, Poland
[4] Univ Belgrade, Inst Biol Res Sinisa Stankovic, Dept Immunol, Belgrade, Serbia
[5] Univ Catania, Dept Biomed Sci, Catania, Italy
[6] Regina Elena Canc Ctr, I-00144 Rome, Italy
[7] Univ Roma La Sapienza, Dept Hematol Oncol, I-99161 Rome, Italy
[8] Univ Hosp Parma, Unit Hematol & Bone Marrow Transplantat, I-43100 Parma, Italy
[9] Univ Gottingen, Dept Med, Gottingen, Germany
[10] Univ Bologna, Dipartimento Sci Anat Umane & Fisiopatol Apparat, Bologna, Italy
[11] IOR, IGM CNR, Sez Bologna, Bologna, Italy
[12] Univ Palermo, Dept Internal Med & Specialties, Palermo, Italy
[13] Ist Biomed & Immunol, Consiglio Nazl Ric, Palermo, Italy