Javed Iqbal, Faridullah Khan, Naveeda Javed, J. I. . F. K. . . N. J. “Comparison of De Vaga Versus Ring Annuloplasty in Patients With Moderate to Severe Tricuspid Regurgitation”. Journal of Rawalpindi Medical College, vol. 23, no. 1, May 2019, http://journalrmc.com/index.php/JRMC/article/view/1077.