Machado, Norman O, and Lovina S M Machado. “Sigmoid Volvulus Complicating Pregnancy Managed by Resection and Primary Anastomosis Case Report With Literature Review”. Sultan Qaboos University Medical Journal 9, no. 1 (April 1, 2009): 84–88. Accessed May 4, 2024. https://journals.squ.edu.om/index.php/squmj/article/view/1407.