TY - JOUR AU - Colombel, J F; Sandborn, W J; Ghosh, S TI - Four-year maintenance treatment with adalimumab in patients with moderately to severely active ulcerative colitis: Data from ULTRA 1, 2, and 3 JO - Am J Gastroenterol VL - 109 PY - 2014 DO - 10.1038/ajg.2014.242 L3 - PubMed-ID: 25155227 SP - 1771 EP - 1780 N1 - et al. ER -