Rohena, Fabian J., et al. “Granulomatous Enterocolitis Secondary to Yersinia in an 11-Year-Old Boy from Puerto Rico, Confirmed by PCR: A Case Report”. Puerto Rico Health Sciences Journal, vol. 33, no. 1, Feb. 2014, https://prhsj.rcm.upr.edu/index.php/prhsj/article/view/780.