1. Departments of Clinica Medica (R.B., M.Z., C.F., P.V., A.P., M.F., B.C., L.C., G.G.), Department of Clinical, Morphological and Technological Sciences, University of Trieste, 34127 Trieste, Italy
2. Department of Nuclear Medicine (M.M., F.D.), Azienda Ospedaliera Ospedali Riuniti, 34127 Trieste, Italy