COPD clinical control as a predictor of future exacerbations: Concept validation in the SPARK study population

1. Barrecheguren, M.
2. Kostikas, K.
3. Mezzi, K.
4. Shen, S.
5. Alcazar, B.
6. Soler-Cataluña, J.J.
7. Miravitlles, M.
8. Wedzicha, J.A.