Ahmed, Shahriar, Qazi Shamima Akter, Hossneara Eva, and Mita Bhowmik. 2016. “Effect of Air Pollution on FVC, FEV1 and FEV1/FVC% of the Traffic Policemen in Dhaka Ci”. Journal of Bangladesh Society of Physiologist 11 (2):39-42. https://doi.org/10.3329/jbsp.v11i2.30647.