Background In contemporary management of chronic obstructive pulmonary disease (COPD), the frequent exacerbator phenotype, based on a 12-month history of acute exacerbation of COPD (AECOPD), is a major determinant of therapeutic recommendations. However, there is considerable debate as to the stability of this phenotype over time.


iStock, curtoicurto

Read more ERS…


Citation: Mohsen SadatsafaviJames McCormackJohn PetkauLarry D. LyndTae Yoon LeeDon D. Sin