Efectiveness of the 2010/11 seasonal trivalent infuenza vaccine in spain: Preliminary results of a case-control study

1. Savulescu, C.
2. Jiménez-Jorge, S.
3. de Mateo, S.
4. Ledesma, J.
5. Pozo, F.
6. Casas, I.
7. Larrauri, A.