Mahmood, A.; Akhtar, K.; Tariq, F.; Sadiq, N.; Ara, A.; Imtiaz, S.; Sultan, M.; Akbar, H. TECHNICAL CONSIDERATIONS FOR VENTRICULAR SEPTAL DEFECT DEVICE CLOSURE USING COCOON OCCLUDERS AT TERTIARY CARE CENTER IN PAKISTAN. Pak Armed Forces Med J 2021, 71 (Suppl-2), S293-97.