Muhammad Younas, Ahsan Beg, Tauseef Asma and Baqir Maqbool 2021. Experience of transcatheter device closure of atrial septal defect in a tertiary care institute. Journal of the Pakistan Medical Association. 71, 7 (Dec. 2021), 1776–1779. DOI:https://doi.org/10.47391/JPMA.1362.