Comorbidities in patients hospitalized due to chronic obstructive pulmonary disease. A comparative analysis of the ECCO and ESMI studies

1. Almagro, P.
2. López, F.
3. Cabrera, F.J.
4. Portillo, J.
5. Fernández-Ruiz, M.
6. Zubillaga, E.
7. Díez, J.
8. Román, P.
9. Murcia-Zaragoza, J.
10. Boixeda, R.
11. Murio, C.
12. Soriano, J.B.