1.
Suleman A, Ullah R, Nisar H, Naz S, Khan RN. Prevalence of Influenza vaccination in Chronic Obstructive pulmonary disease patients. Pak J Chest Med [Internet]. 2018Aug.29 [cited 2026May2];24(2):86-90. Available from: http://www.pjcm.net/index.php/pjcm/article/view/519