1 Department of Neurorehabilitation, Hospital of Vipiteno (SABES-ASDAA), Vipiteno-Sterzing, Italy; Lehrkrankenhaus der Paracelsus Medizinischen Privatuniversität, Salzburg, Austria. Electronic address: viviana.versace@sabes.it.
2 Department of Clinical Neurophysiology, Aarhus University Hospital, Aarhus, Denmark.