A POSITIVE BASELINE MRI OF THE SACROILIAC JOINTS IN PATIENTS WITH EARLY INFLAMMATORY BACK PAIN PREDICTS PERSISTENCE OF MRI ACTIVITY IN HLA-B27 POSITIVE INDIVIDUALS
Author(s):
Onna, M. van; Heijde, D. van der; Jurik, A.G.; Jacobs, P.; Heuft, L.; Weijers, R.; Landewe, R.
