%0 Journal Article %A A. Faustini %A C. Marino %A D. D'Ippoliti %A F. Forastiere %A V. Belleudi %A C.A. Perucci %T The impact of using different mortality outcomes in COPD patients on risk factors analysis %D 2008 %R 10.1183/09031936.00059807 %J European Respiratory Journal %U https://erj.ersjournals.com/content/erj/early/2008/04/30/09031936.00059807.full.pdf