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Correct use and ease-of-use of placebo ELLIPTA dry-powder inhaler in adult patients with chronic obstructive pulmonary disease
- Thomas M. Siler,
- Renu Jain,
- Kathryn Collison,
- Raj Sharma,
- Laura Sutton,
- Jamie Rees,
- David I. Bernstein
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- Published: August 15, 2022
- https://doi.org/10.1371/journal.pone.0273170