Beena Rehman, Khadija Akbar, Irum Ibraheem. “Comparison of Efficacy in Terms of Prevention of Preeclampsia in Patients With Calcium Intake Versus Without Calcium Intake”. Pakistan Journal of Medical & Health Sciences, vol. 16, no. 07, Aug. 2022, p. 233, doi:10.53350/pjmhs22167233.