Clinical development of combination strategies in immunotherapy: Are we ready for more than one investigational product in an early clinical trial?

1. Perez-Gracia, J.L.
2. Berraondo, P.
3. Martinez-Forero, I.
4. Alfaro, C.
5. Suarez, N.
6. Gurpide, A.
7. Sangro, B.
8. Hervas-Stubbs, S.
9. Ochoa, C.
10. Melero, J.A.
11. Melero, I.