[1]
D. K. Sunyal, M. R. Amin, A. Yasmin, G. M. Molla, M. L. Ali, and M. Sultana, “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, vol. 2, no. 1, pp. 29–32, Sep. 2012.