de León-Borrás, Rafael, Carlos Sánchez-Sergentón, Angel Mayor-Becerra, and Angel F. Laureano-Cuadrado. 2019. “Polymyxin B for Gram Negative Multidrug Resistant Bacteria in a Hispanic Population”. Puerto Rico Health Sciences Journal 38 (1):15-21. https://prhsj.rcm.upr.edu/index.php/prhsj/article/view/1687.