Z. A. Polly, S. Begum, S. Ferdousi, N. Begum, T. Ali, and A. Begum, “FVC, FEV₁ and FEV₁/FVC%, In Postmenopausal Women and Their Relationship with Serum Progesterone and Estrogen Level”, J Bangladesh Soc Physiol, vol. 4, no. 1, pp. 7–13, Dec. 2009.