1. Epidemiology and clinical impact of major comorbidities in patients with COPD;Smith;Int J Chron Obstruct Pulmon Dis,2014
2. The unmet global burden of COPD;Quaderi;Glob Health Epidemiol Genom,2018
3. Global Initiative for Chronic Obstructive Lung Disease. 2021 Report. Available at: https://goldcopd.org/wp-content/uploads/2020/11/GOLD-REPORT-2021-v1.1-25Nov20_WMV.pdf. Accessed 15 May 2022.
4. Triple inhaled therapy at two glucocorticoid doses in moderate-to-very-severe COPD;Rabe;N Engl J Med,2020
5. Pulmonary rehabilitation for chronic obstructive pulmonary disease;Mccarthy;Cochrane Database Syst Rev,2015