%0 Journal Article %T Lack of efficacy of azathioprine in the treatment of axial arthritis complicating Crohn's disease %A Rispo, Antonio %A Scarpa, Raffaele %A Diaferia, Maria %A Testa, Anna %A Castiglione, Fabiana %J Journal of Crohn s and Colitis %V 2 %N 4 %P 357-358 %@ 1873-9946 %D 2008-12-01 %I Elsevier Science %~ DeepDyve