1. Division of Nuclear Medicine, European Institute of Oncology, Milan, Italy.
2. Division of Hematoncology, European Institute of Oncology, Milan, Italy.
3. Division of Medical Physics, European Institute of Oncology, Milan, Italy.
4. Gamma Unit, Radiology Department, Mater Dei Hospital, Msida, Malta.
5. Division of Radiometabolic Medicine, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (I.R.S.T.), Meldola (FC), Italy.