Original Research

Which GOLD B patients progress to GOLD D with the new classification?

Choi HS, Na JO, Lee JD, Shin KC, Rhee CK, Hwang YI, Lim SY, Yoo KH, Jung KS, Park YB

International Journal of Chronic Obstructive Pulmonary Disease 2018, 13:3233-3241

Published Date: 12 October 2018