Upper gastrointestinal bleeding in patients 80 years old and over. A comparison with younger patients and risk factors analysis for in-hospital and delayed mortality

1. Redondo-Cerezo, E.
2. Ortega-Suazo, E.J.
3. Vadillo-Calles, F.
4. Valverde-Lopez, F.
5. Martínez-Cara, J.G.
6. Jimenez-Rosales, R.