Akhtar, F. ., A. . Saeed, F. . Haider, S. J. Sher, and S. . Naureen. “Longitudinal Changes in Lung Function During Pregnancy: The Impact of Asthma”. Pakistan Journal of Chest Medicine, vol. 30, no. 2, June 2024, pp. 229-37, https://www.pjcm.net/index.php/pjcm/article/view/963.