MR-defined fat infiltration of the lumbar paravertebral muscles differs between non-radiographic axial spondyloarthritis and established ankylosing spondylitis.
Mod Rheumatol. 2013 Jul;23(4):811-6. doi: 10.1007/s10165-012-0750-6. Epub 2012 Sep 13.
Mod Rheumatol. 2013.
PMID: 22972014