Metastatic lymphs nodes and lymph node ratio as predictive factors of survival in perforated and non-perforated T4 colorectal tumors

1. Rodríguez-González, D.
2. Martínez-Riera, A.
3. Delgado-Plasencia, L.
4. Bravo-Gutiérrez, A.
5. Álvarez-Argüelles, H.
6. Salido, E.
7. Fernández-Peralta, A.M.
8. González-Aguilera, J.J.
9. Alarcõ-Hernández, A.
10. Medina-Arana, V.