Lung function changes in patients with chronic obstructive pulmonary disease (COPD) and asthma exposed to secondhand smoke in outdoor areas

1. Keogan, S.
2. Alonso, T.
3. Sunday, S.
4. Tigova, O.
5. Fernández, E.
6. López, M.J.
7. Gallus, S.
8. Semple, S.
9. Tzortzi, A.
10. Boffi, R.
11. Gorini, G.
12. López-Nicolás, Á.
13. Radu-Loghin, C.
14. Soriano, J.B.
15. Clancy, L.