Gurusamy, Umamaheswari, Ramya Thangavelu, and Chaitra Venkataswamy. “Abnormalities of the Umbilical Cord: Correlation With Placental Histology and Perinatal Outcome”. International Journal of Research in Medical Sciences 5, no. 11 (October 27, 2017): 5009–5016. Accessed October 12, 2025. https://www.msjonline.org/index.php/ijrms/article/view/4013.