RT Journal Article SR Electronic T1 Juvenile Versus Adult-Onset Ankylosing Spondylitis: Are We Comparing Apples and Oranges? JF The Journal of Rheumatology JO J Rheumatol FD The Journal of Rheumatology SP 887 OP 889 DO 10.3899/jrheum.120164 VO 39 IS 5 A1 RICHARD CONWAY A1 FINBAR D. O’SHEA YR 2012 UL http://www.jrheum.org/content/39/5/887.abstract AB