Changes in Global Initiative for Chronic Obstructive Lung Disease ABCD Groups and the Impact of Regrouping on Treatment: A Comparison of 2017 and 2014

• Ya-Nan Cui,
• Ping Chen,
• Zhong-Shang Dai,
• Yan Chen

Affiliations

Ya-Nan Cui

Ping Chen

Zhong-Shang Dai

Yan Chen