Time trends and impact of upper and lower gastrointestinal bleeding and perforation in clinical practice

1. Lanas, A.
2. García-Rodríguez, L.A.
3. Polo-Tomás, M.
4. Ponce, M.
5. Alonso-Abreu, I.
6. Perez-Aisa, M.A.
7. Perez-Gisbert, J.
8. Bujanda, L.
9. Castro, M.
10. Mũoz, M.
11. Rodrigo, L.
12. Calvet, X.
13. Del-Pino, D.
14. Garcia, S.