Ufuk TÜTÜN, Ayşen AKSÖYEK, Ahmet Tulga ULUS, Ali İhsan PARLAR, M. Kamil GÖL, and Murat BAYAZIT, “Acute gastrointestinal bleeding due to primary aortoduodenal fistula: Report of two rare cases”, Turkish Journal of Gastroenterology, vol. 15, no. 4, pp. 253–257, Jul. 2019.