KARAMAN, N., TÜRKAY, C. and YÖNEM, Özlem (2003) “Irritable bowel syndrome prevalence in city center of Sivas”, Turkish Journal of Gastroenterology, 14(2), pp. 128–131. Available at: https://www.turkjgastroenterol.org/index.php/tjg/article/view/1253 (Accessed: 1 January 2026).