Saurabh Saklani, Shivam Bisht, and Yogesh Joshi, “Assessment of Demographic, Etiologic and Co-morbidity Status Among COPD Patients: https://doi.org/10.54037/WJPS.2022.100702”, World J Pharm Sci, vol. 10, no. 07, pp. 10–15, Jul. 2022.