1. Nuclear Medicine Dept. “M. Bufalini” Hospital, Cesena and Istituto Oncologico Romagnolo - Italy
2. Medical Oncology Dept. “S. Maria delle Croci” Hospital, Ravenna - Italy
3. Pathology Dept. “M. Bufalini” Hospital, Cesena - Italy
4. ENEA Casaccia, Roma - Italy