Sultana, M S, R Begum, Q S Akhter, N S Lovely, S Akhter, and M T Islam. “Serum Calcium and Phosphate Level in Normal Pregnant Women”. Bangladesh Journal of Medical Science 11, no. 3 (September 1, 2012): 217–220. Accessed January 28, 2023. https://www.banglajol.info/index.php/BJMS/article/view/11732.