Activity of gefitinib in central nervous system metastases in patients with non-small-cell lung center: Two case reports and a review of the literature

1. Gurpide, A.
2. Perez-Gracia, J.L.
3. Lopez-Picazo, J.M.
4. Moreno, M.
5. Zubieta, J.L.
6. Martin-Algarra, S.
7. Garcia-Foncillas, J.