Validation of Endoscopic Activity Scores in Patients With Crohn's Disease Based on a Post Hoc Analysis of Data From SONIC

Ferrante, M; Colombel, Jf; Sandborn, Wj; Reinisch, W; Mantzaris, Gj; Kornbluth, A; Rachmilewitz, D; Lichtiger, S; D'Haens, Gr; Van Der Woude, Cj; Danese, S; Diamond, Rh; Oortwijn, Af; Tang, Kl; Miller, M; Cornillie, F; Rutgeerts, Pj