Celalettin ÇETİN, Sait BAĞCI, Ahmet UYGUN, Mustafa GÜLŞEN, Abdurrahman KADAYIFÇI, Necmettin KARAEREN, et al. Needle-knife papillotomy as a second step procedure. Turkish Journal of Gastroenterology [Internet]. 2019 Jul. 25 [cited 2025 Jul. 27];11(2):121-5. Available from: https://tjg.avesjournals.com/index.php/tjg/article/view/1657