Characteristics, stability and outcomes of the 2011 GOLD COPD groups in the ECLIPSE cohort

ECLIPSE Investigators, Alvar Agusti^*, Lisa D. Edwards, Bartolome Celli, William MacNee, Peter M. A. Calverley, Hana Muellerova, David A. Lomas, Emiel Wouters, Per Bakke, Steve Rennard, Courtney Crim, Bruce E. Miller, Harvey O. Coxson, Julie C. Yates, Ruth Tal-Singer, Jorgen Vestbo

^*Corresponding author for this work