Extrafine triple therapy in patients with symptomatic COPD and history of one moderate exacerbation
Dave Singh, Leonardo M. Fabbri, Massimo Corradi, George Georges, Alessandro Guasconi, Stefano Vezzoli, Stefano Petruzzelli, Alberto Papi
European Respiratory Journal 2019 53: 1900235; DOI: 10.1183/13993003.00235-2019