Thakkar, S. ., Kotak, C. ., Kumar, S. . and Nouni, H. . (2025) “Case Of Osteum Secondum type Atrial Septal Defect Presenting As Postpartum Pulmonary Hypertension and Heart Failure with reduced EF”, Journal of Neonatal Surgery. Lahore, Pakistan, 14(15S), pp. 2247–2249. Available at: https://www.jneonatalsurg.com/index.php/jns/article/view/4791 (Accessed: 6December2025).