Khatun, A., K. Kirtania, T. Shima, S. Ferdousi, A. Shahnaz, F. Yeasmin, and N. Sultana. “Association of Serum Calcium and 24 Hours Urinary Excretion of Calcium in Patients of Preeclampsia”. Bangladesh Journal of Medical Biochemistry, vol. 3, no. 2, Feb. 2013, pp. 57-60, doi:10.3329/bjmb.v3i2.13813.