TY - JOUR AU - Paredes, J M; Ripolles, T; Cortis, X TI - Contrast-enhanced ultrasonography: Usefulness in the assessment of postoperative recurrence of Crohn’s disease JO - J Crohns Colitis VL - 7 PY - 2013 DO - 10.1016/j.crohns.2012.03.017 L3 - PubMed-ID: 22542055 SP - 192 EP - 201 N1 - et al. ER -