1. J.L. Crow, MSc, MCSP, DipTP, Unit Physical Therapy, Department of Rehabilitation Medicine and Physical Therapy, Erasmus MC University Medical Center Rotterdam, Room Nc-318, PO Box 2040, 3000 CA Rotterdam, the Netherlands.
2. G. Kwakkel, PT, PhD, Department of Rehabilitation Medicine, MOVE Research Institute Amsterdam, VU University Medical Center, Amsterdam, the Netherlands, and Department of Neurorehabilitation, Reade Center for Rehabilitation and Rheumatology, Amsterdam, the Netherlands.
3. J.B.J. Bussmann, PT, PhD, Department of Rehabilitation Medicine and Physical Therapy, Erasmus MC University Medical Center Rotterdam.
4. J.A.G. Goos, PT, MNR, Department of Physical Therapy, Franciscus Hospital, Roosendaal, the Netherlands.
5. B.C. Harmeling-van der Wel, PT, Department of Rehabilitation Medicine and Physical Therapy, Erasmus MC University Medical Center Rotterdam.