%0 Journal Article %A Dave Singh %A Leonardo M. Fabbri %A Massimo Corradi %A George Georges %A Alessandro Guasconi %A Stefano Vezzoli %A Stefano Petruzzelli %A Alberto Papi %T Extrafine triple therapy in patients with symptomatic COPD and history of one moderate exacerbation %D 2019 %R 10.1183/13993003.00235-2019 %J European Respiratory Journal %P 1900235 %V 53 %N 5 %U https://erj.ersjournals.com/content/erj/53/5/1900235.full.pdf