Risk factors for hospitalization for a chronic obstructive pulmonary disease exacerbation: Efram Study

1. Garcia-Aymerich, J.
2. Monsó, E.
3. Marrades, R.M.
4. Escarrabill, J.
5. Félez, M.A.
6. Sunyer, J.
7. Antó, J.M.
8. Alonso, J.
9. Barreiro, E.
10. Farrero, E.
11. Redondo, M.J.
12. Soler, N.
13. Torres, A.
14. Bonet, G.
15. Izquierdo, J.
16. Morera, J.