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P275 Comparing clinically relevant improvement with umeclidinium/vilanterol and tiotropium/olodaterol in symptomatic copd: a randomised non-inferiority crossover trial
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Compton C, Feldman G, Sousa A, et al
P275 Comparing clinically relevant improvement with umeclidinium/vilanterol and tiotropium/olodaterol in symptomatic copd: a randomised non-inferiority crossover trial

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  • First published November 15, 2017.
Online issue publication 
September 01, 2022

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