Dar, R. A. ., Javed, A. ., Batool, I. ., Raza, A. ., Israr, M. U. ., & Sadiq, R. . (2023). Frequency of Ventricular Septal Defect in Down Syndrome Patients Presenting at a Tertiary Care Hospital. Annals of Punjab Medical College, 17(1), 102–105. https://doi.org/10.29054/apmc/2023.1278