Wagaskar, B. D., and S. Ramteke. “Association Between Umbilical Cord Coiling Index and Adverse Perinatal Outcomes: A Prospective Observational Study”. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, vol. 15, no. 6, May 2026, pp. 2139-45, doi:10.18203/2320-1770.ijrcog20261624.