1. EMG Service Local Health Unit Toscana Sud Est Siena Italy
2. Department of Medical and Surgical Sciences University of Bologna Bologna Italy
3. Department of Medical, Surgical and Neurosciences University of Siena Siena Italy
4. Clinical Neurophysiology, CTO, Department of Neuroscience AOU “Città della Salute e della Scienza” Torino Italy
5. EMG Service, Local Health Unit Toscana Sud Est “Nottola” Hospital, Montepulciano Siena Italy