Gastrointestinal bleeding due to aorto-enteric fistulae: Case report - KARAASLAN, Yusuf; NAK, Selim Giray; GÜREL, Selim; DOLAR, Enver; ZORLUOĞLU, Abdullah; ÖZKAN, Hayati; GÜLTEN, Macit; MEMİK, Faruk (Turkish Journal of Gastroenterology, 1998)