[1] Fdn IRCCS Ist Neurol Carlo Besta, Unit Neurol & Neuropathol 5, Milan, Italy
[2] Fdn IRCCS Ist Neurol Carlo Besta, Unit Neurol 1, Parkinson & Movement Disorders Unit, Milan, Italy
[3] Univ Milan, Otolaryngol Unit, San Paolo Hosp, Dept Hlth Sci, Milan, Italy
[4] SISSA, Lab Prion Biol, Dept Neurosci, Trieste, Italy
[5] Fdn IRCCS Ist Neurol Carlo Besta, Sci Directorate, Milan, Italy