Duarte Castelán, Josué Antonio, Alexis Quetzalcóatl Vega Morales, Karina Itzel Samperio Guerrero, Aide Yesenia Tezmol Morales, and María Fernanda Rodríguez Soto. “True Knot of the Umbilical Cord and Its Implications in the Fetal Well-Being”. International Journal of Medical Science and Clinical Research Studies 2, no. 11 (November 18, 2022): 1310–1312. Accessed June 1, 2024. https://ijmscr.org/index.php/ijmscrs/article/view/441.