Andromanakos, Nikolaos, Dimitrios Filippou, Nikolaos Karandreas, and Alkiviadis Kostakis. “Puborectalis Muscle and External Anal Sphincter: A Functional Unit?”. Turkish Journal of Gastroenterology 31, no. 4 (April 15, 2020): 342–343. Accessed June 14, 2026. https://www.turkjgastroenterol.org/index.php/tjg/article/view/3578.