Iqbals S, Iqbal Z, Ahmad H, Kamal M, Khan MY, Javaid A. FREQUENCY OF RESPIRATORY FAILURE IN PATIENTS WITH ACUTE EXACERBATION OF CHRONIC OBSTRUCTIVE PULMONARY DISEASE. Pak J Chest Med [Internet]. 2016Feb.9 [cited 2026May31];21(3):109-13. Available from: http://pjcm.net/index.php/pjcm/article/view/365