[1] Univ Roma Tor Vergata, Dept Biomed & Prevent, Via Montpellier 1, I-00133 Rome, Italy
[2] Policlin Tor Vergata, Dept Oncohaematol, Nucl Med Unit, Viale Oxford 81, I-00133 Rome, Italy
[3] Univ Roma Tor Vergata, Dept Expt Medicne, Via Montpellier 1, I-00133 Rome, Italy