1. Department of Medical Science and Public Health Institute of Neurology, University of Cagliari Cagliari Italy
2. Department of Medicine Surgery and Dentistry "Scuola Medica Salernitana," University of Salerno Baronissi (SA) Italy
3. Department of Basic Science, Neuroscience and Sense Organs Aldo Moro University of Bari Bari Italy
4. Department of Human Neurosciences Sapienza University of Rome Rome Italy
5. IRCSS Neuromed Pozzili Italy
6. Department of Neurology IRCCS Istituto Clinico Humanitas Rozzano, Milan Italy
7. Neurology 1 Carlo Besta Neurological Institute Milan Italy
8. San Martino Hospital – IRCCS Genoa Italy
9. Department of Clinical and Experimental Medicine University of Pisa Pisa Italy
10. IRCCS ‐ Institute of Neurological Sciences Bologna Italy
11. Clinical Neurophysiology Unit, Cardarelli Hospital Naples Italy
12. Gemelli University Hospital ‐ IRCCS Rome Italy
13. Institute of Neurology, Università Cattolica del Sacro Cuore Rome Italy
14. Neurologic Unit, University Hospital Verona Italy
15. Neurology Unit, San Filippo Neri Hospital Rome Italy
16. Center for Botulinum Toxin Therapy, Neurologic Unit Mater Domini University Hospital Catanzaro Italy
17. Department of Systems Medicine University of Rome Tor Vergata Rome Italy
18. Department of Clinical and Experimental Medicine University of Messina Messina Italy