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APA Citation
Ray, R., Tombs, L., Naya, I., Compton, C., Lipson, D. A., & Boucot, I. (2019). efficacy and safety of the dual bronchodilator combination umeclidinium/vilanterol in COPD by age and airflow limitation severity: A pooled post hoc analysis of seven clinical trials. Pulmonary pharmacology & therapeutics, 57, . http://access.bl.uk/ark:/81055/vdc_100088120263.0x00001d