Increased mortality associated with frequent exacerbations in COPD patients with mild-to-moderate lung function impairment, and smokers with normal spirometry

by Spyridon Fortis, Emily S. Wan, Ken Kunisaki, Patrick Tel Eyck, Zuhair K. Ballas, Russell P. Bowler, James D. Crapo, John E. Hokanson, Chris Wendt, Edwin K. Silverman, Alejandro P. Comellas
Published 2021-11-01