Marzoq Alotaibi, Fayez Salem, Wafa Jazi Alhamereen, Saosan Abdulrahman Almogisib, Ohoud Jazi Alhamereen, Tahani Mohammed Alanazi, Safa Diab Alokaili, Awad Lafi Almutairi, Sultan M Abuqayyan, and Yahya Mohammed alzain. 2022. “Assessment of Depression and Smoking in Chronic Obstructive Pulmonary Disease Patients”. International Journal of Pharmaceutical and Bio Medical Science 2 (11):557-60. https://doi.org/10.47191/ijpbms/v2-i11-15.