1. Nuclear Medicine Department, Cannizzaro Hospital, Via Messina 829, 95126 Catania, Italy
2. FORA S.p.A., Via Alfred Bernhard Nobel 11/a, 43122 Parma, Italy
3. CNR-Istituto di Cristallografia, Via Paolo Gaifami 18, 95126 Catania, Italy
4. Parco scientifico e tecnologico della Sicilia S.C.P.A., Stradale Vincenzo Lancia 57, 95121 Catania, Italy
5. IBFM-CNR Institute of Molecular Bioimaging and Physiology, Contrada Pietra Pollastra, 90015 Cefalù, Italy