Ahmed, S. et al. 2018. Relationship between FVC, FEV1, FEV1/FVC% and serum lead level of the traffic policemen in Dhaka city. Journal of Bangladesh Society of Physiologist. 13, 1 (Aug. 2018), 13–16. DOI:https://doi.org/10.3329/jbsp.v13i1.37843.