1. From the Department of Rehabilitation Medicine (J.M.V., G.K., E.E.H.v.W.), Research Institute MOVE, VU University Medical Center, Amsterdam, the Netherlands; Department of Rehabilitation Medicine (G.K.), Rudolf Magnus Institute of Neuroscience, University Medical Center, Utrecht, the Netherlands; Medical Library (J.C.F.K.), VU University Library, Amsterdam, the Netherlands; Department of Epidemiology and Biostatistics and the EMGO Institute for Health and Care Research (M.W.H.), VU University...