AUTHOR=Liao Li-Chin , Chen Yun-Yu , Fu Yun-Ching , Hung Hui-Chih TITLE=Correlation between pulmonary to systemic flow ratio and N-terminal Pro-B-type natriuretic peptide level in children with atrial septal defect JOURNAL=Frontiers in Cardiovascular Medicine VOLUME=12 YEAR=2025 URL=https://www.frontiersin.org/journals/cardiovascular-medicine/articles/10.3389/fcvm.2025.1522603 DOI=10.3389/fcvm.2025.1522603 ISSN=2297-055X