Khan, Ghufranullah, Akhtar Hussain, and Muhammad Rehman. “Problems Asscoaite With Total Correction for Tetralogy of Fallot in Older Patients a Comparative Study”. Journal of Postgraduate Medical Institute 11, no. 1 (September 5, 2011). Accessed April 20, 2024. https://jpmi.org.pk/index.php/jpmi/article/view/546.