Chari, V. R. R., C. M. Suryawanshi, and P. Sahu. “Anesthetic Management of a Case of a Large Atrial Septal Defect With Mild Pulmonary Hypertension for Emergency Cesarean Section”. Anaesthesia, Pain & Intensive Care, Jan. 2019, pp. 189-91, https://apicareonline.com/index.php/APIC/article/view/440.