Areiba Haider, Sarah Khan, Sania Asif, Raafea Tafweez. Paternal Age and its Relation with Congenital Cardiac Defects in Down’s Syndrome at Children Hospital & ICH, Lahore. Pakistan Journal of Medical & Health Sciences [Internet]. 2022 Jul. 30 [cited 2024 Jul. 17];16(07):26. Available from: https://pjmhsonline.com/index.php/pjmhs/article/view/1759