Bor, S.; DAĞLI, Ülkü; SARER, B.; GÜREL, S.; TÖZÜN, N.; SİVRİ, B.; AKBAŞ, T.; ŞAHİN, B.; MEMİK, F.; BATUR, Y. A Retrospective Study Demonstrating Properties of Nonvariceal Upper Gastrointestinal Bleeding in Turkey. Turkish Journal of Gastroenterology 2011, 22, 249-254.