Narayanagowda, Devanath Sosale, Saroj Golia, Jyoti Jaiswal, and Suhani Srinivas Manasa. “A Bacteriological Study of Acute Exacerbation of Chronic Obstructive Pulmonary Disease over a Period of One Year”. International Journal of Research in Medical Sciences 3, no. 11 (January 16, 2017): 3141–3146. Accessed October 15, 2025. https://www.msjonline.org/index.php/ijrms/article/view/1871.