1. Neurology Unit, University of Brescia, Brescia, Italy
2. Department of Statistics and Epidemiology, University of Pavia, Pavia, Italy
3. Neurogenetic Research Centre, Lamezia Terme, Azienda Sanitaria Provinciale Catanzaro, Catanzaro, Italy
4. Department of Neurosciences, University of Padova, Padova, Italy
5. Department of Neuroscience, University of Parma, Parma, Italy
6. IRCCS San Raffaele, Universitá Vita e Salute, Milan, Italy
7. Center for Research and Treatment of Cognitive Dysfunctions, Institute of Clinical Neurology, Department of Biomedical and Clinical Sciences, “Luigi Sacco” Hospital, University of Milan, Milan, Italy
8. Neurology Unit, Universitá Cattolica, Rome, Italy
9. IRCCS Fatebenefratelli, Brescia, Italy
10. University of Milan, Fondazione CáGranda, IRCCS Ospedale Policlinico, Milan, Italy
11. Section of Neurology, Centre for Memory Disturbances, University of Perugia, Perugia, Italy
12. IRCCS Santa Lucia, Rome, Italy
13. Neurology Unit, University of Torino, Torino, Italy
14. Department of Neurology, San Gerardo Hospital, Monza and University of Milano-Bicocca, Milano, Italy
15. Neurology Unit, ValleCamonica Hospital, Esine, Brescia, Italy