RT Journal Article SR Electronic T1 Axial Spondyloarthritis Flares — Whatever They Are JF The Journal of Rheumatology JO J Rheumatol FD The Journal of Rheumatology SP 401 OP 403 DO 10.3899/jrheum.170075 VO 44 IS 4 A1 ANDREW C.S. KEAT YR 2017 UL http://www.jrheum.org/content/44/4/401.abstract AB