Original Research

Factors associated with exacerbation in mild-to-moderate COPD patients

Kim JK, Lee SH, Lee BH, Lee CY, Kim DJ, Min KH, Kim SK, Yoo KH, Jung KS, Hwang YI

International Journal of Chronic Obstructive Pulmonary Disease 2016, 11:1327-1333

Published Date: 16 June 2016