TY - JOUR T1 - How much HLA-B27 expression is needed for spondyloarthritis? JF - The Journal of Rheumatology JO - J Rheumatol SP - 738 LP - 740 VL - 35 IS - 5 AU - J S Hill Gaston Y1 - 2008/05/01 UR - http://www.jrheum.org/content/35/5/738.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -