Phase II trial of ifosfamide in combination with the VEGFR inhibitor sorafenib in advanced soft tissue sarcoma: a Spanish group for research on sarcomas (GEIS) study

1. García del Muro, X.
2. Maurel, J.
3. Martínez Trufero, J.
4. Lavernia, J.
5. López Pousa, A.
6. de las Peñas, R.
7. Cubedo, R.
8. Berros, J.P.
9. Casado Herráez, A.
10. de Juan, A.
11. Martín Broto, J.