Barkase, A. A., C. U. Salunke, P. S. Gawandi, and V. P. Sathe. “Sigmoid Volvulus in Pregnancy: A Rare Case”. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, vol. 11, no. 5, Apr. 2022, pp. 1612-4, doi:10.18203/2320-1770.ijrcog20221308.