Oğlak, S. C., M. Obut, A. E. Tahaoğlu, N. Uğur Demirel, B. Kahveci, and İhsan Bağlı. “A Prospective Cohort Study of Shock Index As a reliable marker to Predict the patient’s Need for blood transfusion Due to Postpartum Hemorrhage”. Pakistan Journal of Medical Sciences, Vol. 37, no. 3, Mar. 2021, doi:10.12669/pjms.37.3.3444.