Analysing chronic spinal changes in ankylosing spondylitis: a systematic comparison of conventional x rays with magnetic resonance imaging using established and new scoring systems
J Braun, X Baraliakos, W Golder, K-G Hermann, J Listing, J Brandt, M Rudwaleit, S Zuehlsdorf, M Bollow, J Sieper, D van der Heijde
Annals of the Rheumatic Diseases Sep 2004, 63 (9) 1046-1055; DOI: 10.1136/ard.2003.019968
