GÜNŞAR, Fulya, Ulus Salih AKARCA, Nadir YÖNETÇİ, Ömer ÖZÜTEMİZ, Ahmet AYDIN, Galip ERSÖZ, Serhat BOR, Ahmet MUSAOĞLU, Hanefi ÇAVUŞOĞLU, and Yücel BATUR. 1997. “Review of 502 Patients With Upper Gastrointestinal Bleeding”. Turkish Journal of Gastroenterology 8 (2):188-93. https://www.turkjgastroenterol.org/index.php/tjg/article/view/780.