How do patients and professionals differentiate between intra-articular joint bleed and acute flare-ups of arthropathy in patients with haemophilia?. (May 2015) - Timmer, M.A.; Pisters, M.F.; Schutgens, R.E.G.; de Kleijn, P.; Gorkom, B.A.P. Laros-van; Kruip, M.J.H.A.; de Bie, R.A.