Polanía, Ángel María, Francisco Sanmiguel, Diego Felipe Polanía, and Fabio Rojas L. “Dizygotic Ectopic Twin Pregnancy With Live Fetuses”. RFS Revista Facultad de Salud 4, no. 1 (January 9, 2012): 73–79. Accessed December 21, 2024. https://journalusco.edu.co/index.php/rfs/article/view/121.