Wade, M., Gueye, M., Mbodji, A., & Ndiaye, M. D. (2021). Absence of Wharton’s jelly around an umbilical artery. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, 11(1), 259–261. https://doi.org/10.18203/2320-1770.ijrcog20215115