Bari M, Hiron M, Zaman S, Rahman M, Ganguly K. Microbes Responsible For Acute Exacerbation of COPD. Mymensingh Med. J. [Internet]. 2010 Dec. 21 [cited 2024 Nov. 24];19(4):576-85. Available from: https://banglajol.info/index.php/MMJ/article/view/6721