Sunyal, D. K.; Amin, M. R.; Yasmin, A.; Molla, G. M.; Ali, M. L.; Sultana, M. Study of Forced Expiratory Volume in First Second (FEV1) and Ratio of Forced Expiratory Volume in First Second and Forced Vital Capacity in Percentage (FEV1/FVC%) in Pregnant Women. J Enam Med Col 2012, 2, 29-32.