1. Fondazione IRCCS Istituto Neurologico Carlo Besta, Department of Clinical Neurosciences Parkinson and Movement Disorders Unit Milan Italy
2. Department of Neuroscience and Rehabilitation University of Ferrara Ferrara Italy
3. Department of Medical Sciences and Public Health University of Cagliari Cagliari Italy
4. Department of Medical, Surgical and Neurological Sciences University of Siena Siena Italy
5. Fondazione IRCCS Istituto Neurologico Carlo Besta, Department of Neurosurgery Functional Neurosurgery Unit; Milano Milano Italy
6. Fondazione IRCCS Istituto Neurologico Carlo Besta, Unit of Medical Genetics and Neurogenetics Milan Italy