Ahmad, J., M. Nazir, L. Ali, J. Iqbal, and H. Saeed. “Eisenmenger Syndrome: A Silent Killer in Adults Born With Heart Septal Defect: Experience from Cardiac Centre at Faisalabad”. Annals of Punjab Medical College, Vol. 4, no. 1, June 2010, pp. 53-56, doi:10.29054/apmc/2010.668.