1 Department of Neurorehabilitation, Hospital of Sterzing, Sterzing, Italy; Research Unit for Neurorehabilitation of South Tyrol, Bozen, Italy.
2 Department of Neurology, Hochzirl Hospital, Zirl, Austria.
3 Department of Neurology, Franz Tappeiner Hospital, Meran, Italy; Department of Neurology, Christian Doppler Klinik, Paracelsus Medical University, Salzburg, Austria.