1 Department of Geriatrics, Neuroscience and Orthopedics, Università Cattolica del Sacro Cuore, Largo F. Vito 1, 00168, Rome, Italy.
2 Institute of Public Health, Section of Hygiene, UCSC, Rome, Italy.
3 IRCSS Fondazione Santa Lucia, Rome, Italy.
4 Clinical Genetics Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD, USA.
5 Department of Systems Medicine (Neurology), University of Rome Tor Vergata, Rome, Italy.
6 Department of Biomedicine and Prevention, Tor Vergata University, Rome, Italy.
7 Department of Neurosciences, Mental Health and Sensory Organs (NESMOS), Sapienza University of Rome, Rome, Italy.
8 Unità Operativa Complessa Neurologia e Neurofisiopatologia, Azienda Ospedaliera San Camillo Forlanini, Rome, Italy.
9 Unit of Medical Genetics, Center for Neuromuscular and Neurological Rare Diseases, S. Camillo Forlanini Hospital, Rome, Italy.
10 Fondazione Don Carlo Gnocchi Onlus, Milan, Italy.
11 Department of Geriatrics, Neuroscience and Orthopedics, Università Cattolica del Sacro Cuore, Largo F. Vito 1, 00168, Rome, Italy. gsilvestri@rm.unicatt.it.