PT - JOURNAL ARTICLE ED - European Respiratory Society TI - “The effect of exacerbation history on outcomes in the IMPACT trial.” David M.G. Halpin, Mark T. Dransfield, MeiLan K. Han, C. Elaine Jones, Sally Kilbride, Peter Lange, David A. Lipson, David A. Lomas, Fernando J. Martinez, Steve Pascoe, Dave Singh, Robert Wise and Gerard J. Criner. Eur Respir J 2020; 55: 1901921. AID - 10.1183/13993003.51921-2019 DP - 2020 Jun 01 TA - European Respiratory Journal PG - 1951921 VI - 55 IP - 6 4099 - https://publications.ersnet.org//content/55/6/1951921.short 4100 - https://publications.ersnet.org//content/55/6/1951921.full SO - Eur Respir J2020 Jun 01; 55