CHANGES IN PLASMA VOLUME WHEN MEASURING BIOCHEMICAL MARKERS IN RELATION TO ACUTE PHYSICAL ACTIVITY IN OSTEOARTHRITIS. (April 2022) - Bjerre-Bastos, J.; Sejersen, C.; Nielsen, H.B.; Secher, N.H.; Kitchen, C.-C.; Miller, C.P.; Mackey, A.L.; Bihlet, A.R.