Original Research

Comorbidity as a contributor to frequent severe acute exacerbation in COPD patients

Jeong SH, Lee H, Carriere KC, Shin SH, Moon SM, Jeong BH, Koh WJ, Park HY

International Journal of Chronic Obstructive Pulmonary Disease 2016, 11:1857-1865

Published Date: 4 August 2016