APA (7th ed.) Citation

IC, R., & WJ, B. (2005). Polymorphism and ulcerative colitis. Journal of gastroenterology and hepatology, 20(1), 157. https://doi.org/10.1111/j.1440-1746.2004.03756.x

Chicago Style (17th ed.) Citation

IC, Roberts-Thomson, and Butler WJ. "Polymorphism and Ulcerative Colitis." Journal of Gastroenterology and Hepatology 20, no. 1 (2005): 157. https://doi.org/10.1111/j.1440-1746.2004.03756.x.

MLA (9th ed.) Citation

IC, Roberts-Thomson, and Butler WJ. "Polymorphism and Ulcerative Colitis." Journal of Gastroenterology and Hepatology, vol. 20, no. 1, 2005, p. 157, https://doi.org/10.1111/j.1440-1746.2004.03756.x.