Yasin, M., Uzair Noor, Sanaullah Tareen, Nasir Mahmood, Faheem Jan, & Mazhar Ali Khan. (2021). Depression in Patients with Chronic Obstructive Pulmonary Disease at Tertiary Care Hospital of Khyber Pakhtunkhwa. Pakistan Journal of Chest Medicine, 27(1), 08–13. Retrieved from https://pjcm.net/index.php/pjcm/article/view/698