Laverde-Sabogal, Carlos Eduardo, and July Vianneth Torres-González. “Impending Paradoxical Embolism, Patent Foramen Ovale and Pregnancy. Case Report”. Colombian Journal of Anesthesiology, vol. 46, no. 1, Jan. 2018, pp. 79-83, https://www.revcolanest.com.co/index.php/rca/article/view/333.