Depression and Its Risk Factors Among Patients with Chronic Obstructive Pulmonary Disease (COPD) in a Tertiary Level Hospital. J Shaheed Suhrawardy Med Coll [Internet]. 2017 Mar. 7 [cited 2026 Jun. 30];7(2):44-8. Available from: https://www.banglajol.info/index.php/JSSMC/article/view/31440