Basnet S, Adhikary P, Aryal B. Acute Exacerbation of Chronic Obstructive Pulmonary Disease. JCMC [Internet]. 2013 Aug. 22 [cited 2026 Jan. 31];3(1):67-8. Available from: https://www.nepjol.info/index.php/JCMC/article/view/8471