Kalappan, M., Rajendran, K., Suthakaran, P. K., Thangaraj, P., Ganapathy, G., & 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), 938–941. https://doi.org/10.18203/2349-3933.ijam20163727