Gudagunti, Ashok Kumar, and Sudhir Chaudhri. “A Study of C Reactive Proteins in Patients With Stable Chronic Obstructive Pulmonary Disease”. International Journal of Advances in Medicine 6, no. 2 (March 25, 2019): 227–231. Accessed December 25, 2025. https://www.ijmedicine.com/index.php/ijam/article/view/1602.