Prognostic value of clinically important deterioration in COPD: IMPACT trial analysis.
Han MK, Criner GJ, Dransfield MT, Halpin DMG, Jones CE, Kilbride S, Lange P, Lettis S, Lipson DA, Lomas DA, Martin N, Martinez FJ, Wise RA, Naya IP, Singh D. Prognostic value of clinically important deterioration in COPD: IMPACT trial analysis. ERJ Open Res. 2021 Jan; 7(1).