ullah, Raza, Shahid Salam, Tahir Ghaffar, Rahim Muhammad, and Imran Khan. “FREQUENCY OF UNDIAGNOSED CHRONIC OBSTRUCTIVE PULMONARY DISEASE IN PATIENTS WITH CORONARY ARTERY DISEASE”. Journal of Ayub Medical College Abbottabad 29, no. 2 (April 8, 2017): 285–288. Accessed May 3, 2025. https://www.jamc.ayubmed.edu.pk/index.php/jamc/article/view/1731.