“Navigating High-Risk Obstetric Anesthesia: Successful Management of Cesarean Section With Graded Epidural Blockade in a Parturient With Atrial Septal Defect and Moderate Pulmonary Hypertension”. 2025. Journal of Anesthesiology and Clinical Research 6 (2): 948-62. https://doi.org/10.37275/jacr.v6i2.796.