Shah, Meenakshi, Varsha Godbole, Tejas K Patel, and Tejas R Patel. 2017. “Study of Economic Burden and Health Care Resource Utilization by Chronic Obstructive Pulmonary Disease Patients in a Tertiary Care Hospital in Western India”. National Journal of Community Medicine 8 (09):535-40. https://njcmindia.com/index.php/file/article/view/1262.