Shadkam, Omid, Ali Bahari, Mohammadreza Farzanehfar, Ali Beheshti Namdar, Mitra Ahadi, Azita Ganji, Ladan Goshayeshi, and Kambiz Akhavan Rezayat. “Diagnostic Value of the Glasgow-Blatchford Scoring System in Patients With Upper Gastrointestinal Bleeding”. Acta Medica Iranica 58, no. 12 (January 4, 2021): 616-620. Accessed January 20, 2021. https://acta.tums.ac.ir/index.php/acta/article/view/8371.