N. Agrawal, A. Jain, L. Singh, and A. 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”, SRMsJMS, vol. 2, no. 02, pp. 84-90, Dec. 2016.