Lee, C. K., Kim, H., Ye, B. D., Lee, K., Kim, Y. S., Rhee, S. Y., . . . Kim, E. S. (2014). Patients with Crohn's disease on anti-tumor necrosis factor therapy are at significant risk of inadequate response to the 23-valent pneumococcal polysaccharide vaccine. Journal of Crohn's and Colitis, 8(5), 384-391. https://doi.org/10.1016/j.crohns.2013.09.022

Lee, Chang Kyun, et al. "Patients with Crohn's Disease on Anti-tumor Necrosis Factor Therapy Are at Significant Risk of Inadequate Response to the 23-valent Pneumococcal Polysaccharide Vaccine." Journal of Crohn's and Colitis 8, no. 5 (2014): 384-391. https://doi.org/10.1016/j.crohns.2013.09.022.

Lee, Chang Kyun, et al. "Patients with Crohn's Disease on Anti-tumor Necrosis Factor Therapy Are at Significant Risk of Inadequate Response to the 23-valent Pneumococcal Polysaccharide Vaccine." Journal of Crohn's and Colitis, vol. 8, no. 5, 2014, pp. 384-391, https://doi.org/10.1016/j.crohns.2013.09.022.