Kalappan, M., Rajendran, K., Suthakaran, P.K., Thangaraj, P., Ganapathy, G. and Karuthodiyil, R. 2016. Study on comparison of pulmonary function tests among diabetic and non-diabetic patients in a tertiary care hospital. International Journal of Advances in Medicine. 3, 4 (Dec. 2016), 938–941. DOI:https://doi.org/10.18203/2349-3933.ijam20163727.