1 Department of Clinical and Experimental Sciences, University of Brescia, Brescia 25123, Italy; IRCCS Fondazione Don Carlo Gnocchi, Milan, Italy. Electronic address: [email protected].
2 Department of Physical and Rehabilitation Medicine, University Hospitals Leuven, KU Leuven, Belgium.
3 Center for Rehabilitation Outcomes Research, Department of Physical Medicine and Rehabilitation, Feinberg School of Medicine, Northwestern University, Evanston, IL, USA.
4 Department of Physical and Rehabilitation Medicine, Hacettepe University Medical School, Ankara, Turkey.
5 Department of Physical Medicine and Rehabilitation, University of Puerto Rico School of Medicine, San Juan, Puerto Rico.