1. Neurology Unit Fondazione Policlinico Universitario “A. Gemelli” IRCCS Rome Italy
2. Department of Neuroscience Università Cattolica del Sacro Cuore Rome Italy
3. Departments of Neurology and Laboratory Medicine and Pathology Mayo Clinic Rochester Minnesota USA
4. Neurology Unit IV Fondazione IRCCS Istituto Neurologico Carlo Besta Milan Italy