1 Department of Orthopedics, Section of Physical Therapy, Radboud University Medical Center, Nijmegen, The Netherlands. Janine.Hidding@radboudumc.nl.
2 Radboud Institute for Health Sciences, Scientific Institute for Quality of Healthcare (IQ healthcare), Radboud University Medical Center, Nijmegen, The Netherlands. Janine.Hidding@radboudumc.nl.
3 Radboud Institute for Health Sciences, Scientific Institute for Quality of Healthcare (IQ healthcare), Radboud University Medical Center, Nijmegen, The Netherlands.
4 Department of Medical Oncology, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands.