RT Journal Article SR Electronic T1 The gut in ankylosing spondylitis and other spondyloarthropathies: inflammation beneath the surface. JF The Journal of Rheumatology JO J Rheumatol FD The Journal of Rheumatology SP 2306 OP 2307 VO 30 IS 11 A1 Filip De Keyser A1 Herman Mielants YR 2003 UL http://www.jrheum.org/content/30/11/2306.abstract AB