1 From the Department of Physical and Rehabilitation Medicine, Hacettepe University Medical School, Ankara, Turkey (LÖ); Physical and Rehabilitation Medicine Unit, Luigi Sacco University Hospital, A.S.S.T. Fatebenefratelli-Sacco, Milan, Italy (VR); Department of Rehabilitation Medicine, First Faculty of Medicine, Charles University and General University Hospital in Prague, Prague, Czech Republic (KM); and Department of Neurosciences, Institute of Human Anatomy, University of Padova, Padova, Italy (CP).