Psychiatric co-morbidity is associated with increased risk of surgery in Crohn's disease (pages 445–454)A. N. Ananthakrishnan, V. S. Gainer, R. G. Perez, T. Cai, S.-C. Cheng, G. Savova, P. Chen, P. Szolovits, Z. Xia, P. L. De Jager, S. Y. Shaw, S. Churchill, E. W. Karlson, I. Kohane, R. H. Perlis, R. M. Plenge, S. N. Murphy and K. P. Liao
Article first published online: 7 JAN 2013 | DOI: 10.1111/apt.12195