@misc{7790, author = {M. Kerkhof and J. Voorham and P. Dorinsky and C. Cabrera and P. Darken and J. Kocks and M. Sadatsafavi and D. Sin and V. Carter and D. Price}, title = {Association between COPD exacerbations and lung function decline during maintenance therapy}, year = {2020}, journal = {Thorax}, issn = {0040-6376}, doi = {10.1136/thoraxjnl-2019-214457}, }