[1] Univ Siena, Policlin Le Scotte, Dept Pediat, Sect Pediat Neurol,UOC Mol Med, I-53100 Siena, Italy
[2] Azienda Osped Univ Senese, Dept Oncol, Policlin Le Scotte, UOC Nucl Med, Siena, Italy
[3] Azienda Osped Univ Senese, Policlin Le Scotte, Neuropsychiat Unit, Siena, Italy