Thangappah, R. B. P., C. S. Karnal, M. R. Ravichandran, A. S. Sowparnika, and P. Sundaravadivelu. “Clinical Significance of Umbilical Cord Abnormalities: An Observational Study”. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, vol. 11, no. 6, May 2022, pp. 1727-33, doi:10.18203/2320-1770.ijrcog20221448.