R., Raveendra K., Devapriya Rejeev, and Nandan kodur. “Study of Microbial Pattern and Antibiotic Sensitivity Pattern in Hospitalised Acute Exacerbation of COPD Patients”. International Journal of Advances in Medicine 6, no. 5 (September 23, 2019): 1652–1656. Accessed May 29, 2026. https://www.ijmedicine.com/index.php/ijam/article/view/1901.