Nilay Danış and Fatih Tekin (2019) “Long-term effects of a flexible sigmoidoscopy screening after 17 years of follow up”, Turkish Journal of Gastroenterology, 28(5), pp. 427–428. Available at: https://tjg.avesjournals.com/index.php/tjg/article/view/3443 (Accessed: 5 July 2025).