1. Nuclear Medicine Unit IRCCS Ospedale Policlinico San Martino Genoa Italy
2. National Institute of Nuclear Physics (INFN), Genoa Section Genoa Italy
3. Department of Nuclear Medicine University Hospital, LMU Munich Munich Germany
4. Department of Nuclear Medicine Inselspital, University Hospital Bern Bern Switzerland
5. Laboratory for Cognitive Neurology Department of Neurosciences KU Leuven Leuven Belgium
6. Neurology Department University Hospitals Leuven Leuven Belgium
7. Biomedical Research Institute, Hasselt University Hasselt Belgium
8. Department of Neurology University Medical Centre Ljubljana Ljubljana Slovenia
9. Faculty of Medicine University of Ljubljana Ljubljana Slovenia
10. Division of Nuclear Medicine and Molecular Imaging Geneva University Hospitals and NIMTLab, Geneva University Geneva Switzerland
11. Department of Clinical Neurosciences Geneva University Hospitals Geneva Switzerland
12. Department of Psychiatry University of Cambridge Cambridge UK
13. LANVIE (Laboratoire de Neuroimagerie du Vieillissement) Department of Psychiatry Geneva University Hospitals Geneva Switzerland
14. Alzheimer Center Amsterdam Department of Neurology Amsterdam Neuroscience, Vrije Universiteit Amsterdam, Amsterdam UMC Amsterdam the Netherlands
15. Department of Radiology & Nuclear Medicine Amsterdam Neuroscience, Vrije Universiteit Amsterdam, Amsterdam UMC Amsterdam the Netherlands
16. Neurology Unit Department of Clinical and Experimental Sciences University of Brescia Brescia Italy
17. Parkinson's Disease Rehabilitation Centre, FERB ONLUS–S Isidoro Hospital Trescore Balneario Italy
18. Department of Clinical Physiology in Linköping Department of Health Medicine and Caring Sciences Linköping University Linköping Sweden
19. Department of Diagnostic Radiology Linköping University Hospital Linköping Sweden
20. Center for Medical Image Science and Visualization (CMIV) Linköping University Linköping Sweden
21. Servicio de Medicina Nuclear Hospital de la Santa Creu i Sant Pau Universitat Autònoma de Barcelona Barcelona Spain
22. Department of Neuroscience (DINOGMI) University of Genoa Genoa Italy
23. Clinical Neurology IRCCS Ospedale Policlinico San Martino Genoa Italy
24. Department of Health Sciences University of Genoa Italy
25. Centre for Age‐Related Medicine (SESAM) Stavanger University Hospital Stavanger Norway
26. Department of Old Age Psychiatry Institute of Psychiatry, Psychology, and Neuroscience, King's College London UK