Sunyal, D.K., Amin, M.R., Molla, M., Talukder, M.M., Ahmed, A. and Begum, M. 2009. Progressive Decline of Partial Pressure of Carbon dioxide and Bicarbonate levels in Arterial Blood of Pregnant Women. Journal of Bangladesh Society of Physiologist. 3, (Jan. 2009), 13–16. DOI:https://doi.org/10.3329/jbsp.v3i0.1788.