1. Department of Neurology, Galliera Hospital, Genova, Italy
2. Unit of Geriatric Medicine, Department of Internal Medicine and Medical Specialties, University of Genova, Genova, Italy
3. Department of Neurosciences, Ophthalmology and Genetics, University of Genova, Genova, Italy
4. Department of Neurological and Psychiatric Sciences, University of Florence, Florence, Firenze, Italy
5. Department of Clinical and Behavioral Neurology IRCCS Santa Lucia Foundation, Roma, Italy