Şirin, Göktuğ, and Seher Şirin. “Functional Constipation As a Neglected Condition in Laryngectomized Patients”. Turkish Journal of Gastroenterology 31, no. 2 (January 2, 2020): 120–127. Accessed January 1, 2026. https://www.turkjgastroenterol.org/index.php/tjg/article/view/3546.