1. J.T. Hidding, PT, MSc, Department of Orthopedics, Section of Physical Therapy, Radboud University Medical Center, Geert Groteplein Noord 21, Nijmegen 6525 EZ, the Netherlands, and Radboud University Medical Center, Radboud Institute for Health Sciences, Scientific Center for Quality of Healthcare (IQ Healthcare), Nijmegen, the Netherlands.
2. P.B. Viehoff, PT, PhD, Department of Dermatology, Erasmus Medical Centre, Rotterdam, the Netherlands, and Centre for Physical and Manual Therapy 't Gilde, Gorinchem, the Netherlands.
3. C.H.G. Beurskens, PT, PhD, Department of Orthopedics, Section of Physical Therapy, Radboud University Medical Center.
4. H.W.M. van Laarhoven, MD, PhD, Department of Medical Oncology, Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands.
5. M.W.G. Nijhuis-van der Sanden, PT, PhD, Radboud University Medical Center, Radboud Institute for Health Sciences, Scientific Center for Quality of Healthcare (IQ Healthcare).
6. P.J. van der Wees, PT, PhD, Radboud University Medical Center, Radboud Institute for Health Sciences, Scientific Center for Quality of Healthcare (IQ Healthcare).