Razzaq, Zubia, Muhammad Aslam, M Mazhar Hussain, Shahab Naqvi, Muhammad Zameer, and Ahmed Badar. 2009. “VARIABLE RESPONSE TO INHALED NITRIC OXIDE IN POSTOPERATIVE PATIENTS OF MITRAL STENOSIS WITH PULMONARY HYPERTENSION”. Journal of Ayub Medical College Abbottabad 21 (1):98-102. https://jamc.ayubmed.edu.pk/index.php/jamc/article/view/3791.