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Cost-effectiveness of combination therapy umeclidinium/vilanterol versus tiotropium in symptomatic COPD patient https://t.co/IaMVw0wTZC
Cost-effectiveness of combination therapy umeclidinium/vilanterol versus tiotropium in symptomatic COPD patient https://t.co/IaMVw0wTZC
Cost-effectiveness of UMEC/VI vs TIO in COPD https://t.co/LlOxUAhMmo