Reza, A., M. Patwary, and A. Baqui. “Percutaneous Balloon Aortic Valvuloplasty (Pbav) in a Child With Congenital Severe Aortic Stenosis –A Case Report”. Cardiovascular Journal, vol. 1, no. 2, Aug. 2011, pp. 234-6, doi:10.3329/cardio.v1i2.8241.