Fig. 1From: Exercise capacity and physical activity in COPD patients treated with a LAMA/LABA combination: a systematic review and meta-analysisPRISMA flowchart. COPD chronic obstructive pulmonary disease, LABA long-acting beta-2 agonists, LAMA long-acting muscarinic antagonists, PRISMA Preferred Reporting Items for Systematic Reviews and Meta-analyses StatementBack to article page