1. Istituto Nazionale di Fisica Nucleare, Sezione di Genova, Genova, Italy
2. Dipartimento di Fisica, Università degli Studi di Genova, Genova, Italy
3. Clinical Neurobiology Unit, Department of Neuroscience (DINOGMI), Genoa University and IRCCS AOU S. Martino-IST, Genova, Genova, Italy
4. Nuclear Medicine Unit, Department of Health Sciences (DISSAL), Genoa University and IRCCS AOU S. Martino-IST, Genova, Genova, Italy
5. Department of Nuclear Medicine, Fondazione Poliambulanza, Brescia, Italy
6. IRCCS Centro San Giovanni di Dio Fatebenefratelli, Brescia, Italy
7. University Hospitals and University of Geneva, Geneva, Switzerland
8. Department of Medical and Experimental Sciences, Unit of Neurology, Brescia University, Brescia, Italy