1. UOC Neurology; Department of Medical Sciences; IRCCS ‘Casa Sollievo della Sofferenza’; San Giovanni Rotondo Italy
2. Department of Clinical Neurosciences and Preventive Medicine; Donau-Universität Krems; Donau Austria
3. Department of Clinical Neurosciences; UCL Institute of Neurology; London UK
4. Department of Neurology; University Hospital Schleswig-Holstein, Kiel Campus; Christian-Albrechts-University Kiel; Kiel Germany
5. Department of Neurological, Neurosurgical and Behavioural Sciences; Medical School; University of Siena; Siena Italy