Akhtar, K.; Mehmood, A.; Khalil, H.; Sadiq, N.; Sultan, M. TECHNICAL OVERVIEW OF PERCUTANEOUS TRANS-CATHETER DEVICE OCCLUSION OF VENTRICULAR SEPTAL DEFECTS WITH VARIOUS BRANDS OF SEPTAL OCCLUDERS. EXPERIENCE AT AFIC-NIHD RAWALPINDI. Pak Armed Forces Med J 2019, 69 (Suppl-3), S451-56.