Sadiq, Nadeem, Maad Ullah, Umair Younis, Amjad Mahmood, and Khurram Akhtar. 2016. “TRANSCATHETER DEVICE CLOSURE OF SECUNDUM ASD A 10 YEARS EXPERIENCE - A SINGLE CENTRE STUDY”. Pakistan Heart Journal 48 (3). https://doi.org/10.47144/phj.v48i3.963.