A. Şeref Köksal, A. T. Eminler, A. Y. Savaş, M. İhsan Uslan, and E. Parlak, “Endoscopic anterograde cholangiography in a patient with Bouveret’s syndrome”, Turkish Journal of Gastroenterology, vol. 27, no. 6, pp. 553–554, Jan. 2016.