Lu, Haiyan, Jindong Wang, Lingjuan Zhou, and Lian Liu. “Safety and Effectiveness of Transthoracic Echocardiography and Transesophageal Echocardiography in the Interventional Closure of Atrial Septal Defects in Children: A Systematic Review and Meta-Analysis”. The Heart Surgery Forum 27, no. 6 (June 19, 2024): E668-E679. Accessed August 23, 2024. https://journal.hsforum.com/index.php/HSF/article/view/7353.