Hassan, M., Hasan, K., Quader, S., Sarker, R., Ahmed, F., Salam, A., Razzaque, S., Yakub, A. and Mahmood, K. (2010) “Ventricular Septal Defect in Children with Down Syndrome - Two Case Reports”, Cardiovascular Journal, 3(1), pp. 107–109. doi: 10.3329/cardio.v3i1.6438.