Asthma in older people hospitalized with influenza in Spain: A case-control study

1. Morales-Suárez-Varela, M.
2. Llopis-González, A.
3. Vergara-Hernández, C.
4. Fernandez-Fabrellas, E.
5. Sanz, F.
6. Perez-Lozano, M.J.
7. Martin, V.
8. Astray, J.
9. Castilla, J.
10. Egurrola, M.
11. Force, L.
12. Toledo, D.
13. Domínguez, Á.