Gemcitabine and capecitabine as third- or later-line therapy for refractory advanced colorectal cancer: A retrospective study

1. Salgado, M.
2. Reboredo, M.
3. Mendez, J.C.
4. Quintero, G.
5. Pellón, M.L.
6. Romero, C.
7. Jorge, M.
8. Montes, A.F.
9. Valladares-Ayerbes, M.
10. Ramos, M.
11. Varela, S.
12. Alonso, M.A.