1. Nuclear Medicine, Department of Health Sciences (DISSAL), University of Genoa, IRCCS AOU San Martino–IST, Genoa, Italy
2. Clinical Neurology, Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics, and Mother-Child health (DINOGMI), University of Genoa, IRCCS AOU San Martino–IST, Genoa, Italy
3. LENITEM Laboratory of Epidemiology and Neuroimaging-IRCCS S. Giovanni di Dio-FBF, Brescia, Italy
4. University Hospitals and University of Geneva, Geneva, Switzerland
5. Department of Nuclear Medicine & PET Research, VU University Medical Center, Amsterdam, The Netherlands
6. Neuroepidemiology and Ageing Research Unit, School of Public Health, Faculty of Medicine, The Imperial College of Science, Technology, and Medicine, London, UK
7. West London Cognitive Disorders Treatment and Research Unit, London, UK
8. Department of Psychiatry and Psychotherapy, Technische Universität, Munich, Germany
9. Department of Nuclear Medicine, Technische Universität, Munich, Germany
10. APHM, CHU Timone, Service de Neurologie et Neuropsychologie, Aix-Marseille University, INSERM U 1106, Marseille, France
11. APHM, CHU Timone, Service de MédecineNucléaire; Aix-Marseille University, CERIMED, INT CNRS UMR7289, Marseille, France
12. Institute of Bioimaging and Molecular Physiology, Consiglio Nazionale delle Ricerche (CNR), Genoa, Italy
13. Institute of Cognitive Sciences and Technologies, Consiglio Nazionale delle Ricerche (CNR), Rome, Italy
14. Department of Nuclear Medicine, Karolinska University Hospital, Stockholm, Sweden