Exercise-induced pain reductions in knee osteoarthritis are associated with changes in muscle perfusion quantified by dynamic contrast enhanced magnetic resonance imaging: exploratory outcome analysis from a randomized controlled trial. (April 2017) - Bandak, E.; Boesen, M.; Bliddal, H.; Riis, R.G.; Klokker, L.; Bartholdy, C.; Nybing, J.D.; Henriksen, M.