Mediastinal mass following chemotherapy in patients with Ewing sarcoma and osteosarcoma

1. Panadero, M.A.
2. Cruz, J.J.
3. Gomez, A.
4. Fonseca, E.
5. Garcia, M.J.
6. Garcia, J.
7. Martin, G.
8. Sanchez, P.
9. Dueñas, G.A.