Performance of prognostic risk scores in urgent upper gastrointestinal hemorrhage
Authors: I. Iborra, M. Fortuny, E. Vayreda, A. Calm, L. Gutierrez-Rios, L. Gonzalez-Gonzalez, E. Castillo, N. Caballero, J. Colan-Hernandez, H. Uchima, V. Moreno De Vega, E. Domènech