PT  - JOURNAL ARTICLE
AU  - Xu, W.
AU  - Collet, J-P.
AU  - Shapiro, S.
AU  - Lin, Y.
AU  - Yang, T.
AU  - Wang, C.
AU  - Bourbeau, J.
TI  - Negative impacts of unreported COPD exacerbations on health-related quality of life at one year
AID  - 10.1183/09031936.00079409
DP  - 2009 Nov 06
TA  - European Respiratory Journal
4099  - http://erj.ersjournals.com/content/early/2009/11/06/09031936.00079409.short
4100  - http://erj.ersjournals.com/content/early/2009/11/06/09031936.00079409.full