Hubba Ahmed, et al. “Effect of Abdominal Circumference and Fetal Weight on Supine Hypotension During C-Section under Spinal Anesthesia”. Pakistan Journal of Medical Research, vol. 63, no. 1, May 2024, pp. 46-50, https://www.pjmr.org.pk/index.php/pjmr/article/view/522.