UNDERSTANDING FETAL CIRCULATION AND THE TRANSITION TO POSTNATAL CIRCULATION: SHUNTS, PLACENTA AND CONGENITAL HEART DEFECTS. ibmscr [Internet]. 2023 Dec. 11 [cited 2025 Mar. 14];3(12):21-6. Available from: https://researchcitations.com/index.php/ibmscr/article/view/3251