Physicians' knowledge of inhaler devices and inhalation techniques remains poor in Spain

1. Plaza, V.
2. Sanchis, J.
3. Roura, P.
4. Molina, J.
5. Calle, M.
6. Quirce, S.
7. Viejo, J.L.
8. Caballero, F.
9. Murio, C.