Evaluation of comparative efficacy of Umeclidinium/Vilanterol versus other bronchodilators in the management of chronic obstructive pulmonary disease: a systematic review and meta-... by He Zhu, Jiahui Lei, Fan Gao, Yingjie Guo, Limin Zhao

Subjects: “…Chronic obstructive pulmonary disease (COPD), Bronchodilators…”
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