Agrawal, Nipun, Anshul Jain, Lalit Singh, and Abhishek Jain. “A Comparative Study to Evaluate C-Reactive Protein and Procalcitonin As a Marker of Bacterial Infection in Patients with Acute Exacerbation of Chronic Obstructive Pulmonary Disease”. SRMS JOURNAL OF MEDICAL SCIENCE 2, no. 02 (December 30, 2016): 84-90. Accessed October 14, 2025. https://jmssrms.in/index.php/journal/article/view/156.