Muhammad Shehroz Khan, Shereen Khan, Musarat Javed, Mujeeb Ullah Khan Doutani, Syed Abdul Waheed, Gul habib. Frequency of Positive Sputum Cultures and the Microorganisms Frequently Complicating Exacerbations of COPD. JHWCR [Internet]. 2025 Jun. 10 [cited 2025 Jul. 6];:e498. Available from: https://jhwcr.com/index.php/jhwcr/article/view/498