Proportional classifications of COPD phenotypes.
Marsh SE, Travers J, Weatherall M, Williams MV, Aldington S, Shirtcliffe PM, Hansell AL, Nowitz MR, McNaughton AA, Soriano JB, Beasley RW.
Marsh SE, et al. Among authors: travers j.
Thorax. 2008 Sep;63(9):761-7. doi: 10.1136/thx.2007.089193.
Thorax. 2008.
PMID: 18728201
Free PMC article.