Coffee ground emesis and early endoscopy: Is timing actually relevant?

1. Blanco Nodal, I.
2. Roales Gómez, V.
3. Olivares Quintanar, D.
4. Velasco Martínez, E.
5. Molina Tejedor, S.
6. Esteban López-Jamar, J.M.
7. Rey Díaz-Rubio, E.