[1] Osped S Maria Misericordia, PET CT Unit, Nucl Med Serv, I-45100 Rovigo, Italy
[2] Policlin S Orsola, PET CT Unit, Dept Nucl Med, I-40138 Bologna, Italy
[3] Univ Michigan, Dept Radiol, Div Nucl Med, Ann Arbor, MI 48109 USA
[4] Dept Vet Affairs Healthcare Dept, Ann Arbor, MI USA
[5] Hammersmith Hosp, Dept Nucl Med, London, England