Aziz, Saleha, Maaha Ayub, Laiba Masood, Muneer Amanullah, Rukhsana Hameed, Shiraz Hashmi, and Waris Ahmad. 2020. “Major Septal Defects: Comparative Study of Down Syndrome and Non-Down Syndrome Infants, Before and After Surgery”. Pakistan Journal of Medical Sciences 36 (5). https://doi.org/10.12669/pjms.36.5.1743.