scholarly journals Comparative Efficacy of Once-Daily Umeclidinium/Vilanterol and Tiotropium/Olodaterol Therapy in Symptomatic Chronic Obstructive Pulmonary Disease: A Randomized Study

2017 ◽  
Vol 34 (11) ◽  
pp. 2518-2533 ◽  
Author(s):  
Gregory J. Feldman ◽  
Ana R. Sousa ◽  
David A. Lipson ◽  
Lee Tombs ◽  
Neil Barnes ◽  
...  
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