Ahmad, Nadeem, Rubeena Bano, A M Mahagaonkar, and B N Mishra. 2010. “A COMPARATIVE STUDY OF PULMONARY FUNCTION TESTS IN SMOKERS AND NON-SMOKERS IN RURAL MAHARASHTRA”. Indian Journal of Community Health 22 (1):22-25. https://www.iapsmupuk.org/journal/index.php/IJCH/article/view/162.