S. Rodrigues, Catarina, Ana M. Cabral, Francisca Assunção, Bruno Couto, Marta Guimarães, and Rui F. Almeida. “Sigmoid Volvulus Strangulation Caused by a Giant Type IV Hiatal Hernia”. International Surgery Journal 12, no. 9 (August 26, 2025): 1530–1535. Accessed October 3, 2025. https://www.ijsurgery.com/index.php/isj/article/view/11311.