Ma, C., Moran, G. W., Benchimol, E. I., Targownik, L. E., Heitman, S. J., Hubbard, J. N., Seow, C. H., Novak, K. L., Ghosh, S., Panaccione, R., & Kaplan, G. G. (2017). Surgical rates for Crohn’s Disease are decreasing: a population-based time trend analysis and validation study. American Journal of Gastroenterology, 112, https://doi.org/10.1038/ajg.2017.394