Dual- Versus Mono-Bronchodilator Therapy in Moderate to Severe COPD: A Meta-analysis.
Melissa LipariPramodini B Kale-PradhanSheila M WilhelmPublished in: The Annals of pharmacotherapy (2020)
Dual therapy improves FEV1 and is as safe as LAMA. Dual therapy does not improve SGRQ scores more than LAMA.