E. ShanmugananthSumitra SinghRitu AhlawatGopal NambiG. SperjanManoj AbrahamKalindi Dev2025-01-092025-01-09201910.5958/0974-360X.2019.00915.6https://dspace-cris.utar.edu.my/handle/123456789/11165Prevalence of Chronic Obstructive Pulmonary Disease (COPD) among Indian Populationjournal-article