Özlem KÖKSAL; Gülden ÖZEREN; Fatma ÖZDEMİR; Erol ARMAĞAN; Şule AYDIN; Talat AYYILDIZ. Prospective Validation of the Glasgow Blatchford Scoring System in Patients With Upper Gastrointestinal Bleeding in the Emergency Department. Turkish Journal of Gastroenterology 2019, 23, 448-455.