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 September 9, 2025. https://www.jmssrms.in/index.php/journal/article/view/156.