Since the times for admission is expected to vary, which will be described under 1),we also want to measure if and how this difference might influence results. Therefore a fixed measure is inserted between admission and discharge. we have added a "relatively" fixed date at 6 months post stroke in order to see if change of function from specialized rehabilitation will differ in a longitudinal perspective, and if possible to see if the difference in time to admission (time from debut till admission in specialized rehabilitation)might influence results.