Feuerstein, J. D., Ho, E. Y., Shmidt, E., Singh, H., Falck-Ytter, Y., Sultan, S., … American Gastroenterological Association Institute Clinical Guidelines Committee, . (2021). AGA Clinical Practice Guidelines on the Medical Management of Moderate to Severe Luminal and Perianal Fistulizing Crohn's Disease. Gastroenterology, 160(7), 2496–2508. https://doi.org/10.1053/j.gastro.2021.04.022

Feuerstein, Joseph D., Edith Y. Ho, Eugenia Shmidt, Harminder Singh, Yngve Falck-Ytter, Shanaz Sultan, Jonathan P. Terdiman, and Jonathan P. American Gastroenterological Association Institute Clinical Guidelines Committee. “AGA Clinical Practice Guidelines on the Medical Management of Moderate to Severe Luminal and Perianal Fistulizing Crohn's Disease.” Gastroenterology 160, no. 7 (June 2021): 2496–2508. https://doi.org/10.1053/j.gastro.2021.04.022.

Feuerstein JD, Ho EY, Shmidt E, Singh H, Falck-Ytter Y, Sultan S, et al. AGA Clinical Practice Guidelines on the Medical Management of Moderate to Severe Luminal and Perianal Fistulizing Crohn's Disease. Gastroenterology. 2021 Jun;160(7):2496–508.

Feuerstein, Joseph D., et al. “AGA Clinical Practice Guidelines on the Medical Management of Moderate to Severe Luminal and Perianal Fistulizing Crohn's Disease.” Gastroenterology, vol. 160, no. 7, June 2021, pp. 2496–508. Pubmed, doi:10.1053/j.gastro.2021.04.022.

Feuerstein JD, Ho EY, Shmidt E, Singh H, Falck-Ytter Y, Sultan S, Terdiman JP, American Gastroenterological Association Institute Clinical Guidelines Committee. AGA Clinical Practice Guidelines on the Medical Management of Moderate to Severe Luminal and Perianal Fistulizing Crohn's Disease. Gastroenterology. 2021 Jun;160(7):2496–2508.