Sumaira Khoso, Anbia Soomro, Saira Hashmi, Pushpa Malhi, Tahmina Mahar, Erum Bano. “A Retrospective Case-Control Study on the Risk Factors of Postpartum Hemorrhage”. Pakistan Journal of Medical & Health Sciences, vol. 16, no. 08, Oct. 2022, p. 742, doi:10.53350/pjmhs22168742.