Romero-Marrero, Carlos, Ana P. Ortiz, Cynthia M. Pérez, Javier Pérez, and Esther A. Torres. 2009. “Survival of Hepatocellular Carcinoma in Puerto Rico”. Puerto Rico Health Sciences Journal 28 (2). https://prhsj.rcm.upr.edu/index.php/prhsj/article/view/109.