Benefits of long-term pulmonary rehabilitation maintenance program in patients with severe chronic obstructive pulmonary disease

1. Güell, M.-R.
2. Cejudo, P.
3. Ortega, F.
4. Puy, M.C.
5. Rodríguez-Trigo, G.
6. Pijoan, J.
7. Martinez-Indart, L.
8. Gorostiza, A.
9. Bdeir, K.
10. Celli, B.
11. Galdiz, J.B.