S. Pawar, Rupali, and Subodhini A. Abhang. “Evaluation of Neutrophil Elastase/ Alpha-1-Antitrypsin Ratio in Different Stages of Chronic Obstructive Pulmonary Disease (COPD) Patients”. International Journal of Medical Research and Review 5, no. 7 (July 31, 2017): 664-674. Accessed November 23, 2024. https://ijmrr.medresearch.in/index.php/ijmrr/article/view/894.