[1] Fdn IRCCS Carlo Besta Natl Neurol Inst, Div Neurol Neuropathol 5, Milan, Italy
[2] St Anna Hosp, Dept Nucl Med, Como, Italy
[3] Poliambulanza Fdn, Dept Nucl Med, Brescia, Italy
[4] Univ Genoa, Dept Neurosci DINOGMI, Genoa, Italy
[5] EO Galliera Hosp, Dept Diagnost Imaging, Nucl Med Unit, Genoa, Italy
[6] Univ Cattolica Sacro Cuore, Inst Nucl Med, I-00168 Rome, Italy
[7] Univ Hosp Pisa, Nucl Med Unit, Pisa, Italy
[8] Univ Padua, Dept Med DIMED, Padua, Italy
[9] St Anna Hosp, Dept Neurol, Como, Italy
[10] St Anna Hosp, Stroke Unit, Como, Italy
[11] Briolini Hosp Gazzaniga, Ctr Excellence Alzheimer, FERB, Bergamo, Italy
[12] San Francesco Clin, Neurol Unit, Bergamo, Italy
[13] Papa Giovanni XXIII Hosp, Dept Nucl Med, Bergamo, Italy
[14] Papa Giovanni XXIII Hosp, Dept Neurol, Bergamo, Italy
[15] Papa Giovanni XXIII Hosp, Dept Psychol, Bergamo, Italy