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Peak Inspiratory Flow Rate in COPD: An Analysis of Clinical Trial and Real-World Data

https://doi.org/10.2147/copd.s291554
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32/32 checkable references clean · checked 2026-07-22

Every reference with a DOI in the deposited reference list resolved to a known work in Crossref or DataCite at the dated check, and none carried a retraction, withdrawal, or removal notice.

6 without a DOI — not checked. A reference deposited without a DOI is never matched by title or guessed at; it stays outside the checked set, and this line discloses that.

The 32 checked references that resolve
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Peak Inspiratory Flow Rate as a Criterion for Dry Powder Inhaler Use in Chronic Obstructive Pulmonary Disease
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<i>In Vitro</i> Dosing Performance of the ELLIPTA <sup>®</sup> Dry Powder Inhaler Using Asthma and COPD Patient Inhalation Profiles Replicated with the Electronic Lung (eLung™)
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&lt;p&gt;Prevalence and factors associated with suboptimal peak inspiratory flow rates in COPD&lt;/p&gt;
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Peak Inspiratory Flow Rate in Chronic Obstructive Pulmonary Disease: Implications for Dry Powder Inhalers
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Inspiratory flows through dry powder inhaler in chronic obstructive pulmonary disease: age and gender rather than severity matters
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Investigating the relationship between peak inspiratory flow rate and volume of inhalation from a Diskus™ Inhaler and baseline spirometric parameters: a cross-sectional study
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Peak Inspiratory Flow Rate: An Emerging Biomarker in Chronic Obstructive Pulmonary Disease
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In-vitro product performance of fluticasone furoate (FF)/umeclidinium (UMEC)/vilanterol (VI) delivered from a dry powder inhaler (DPI) using the Electronic Lung (EL) to replicate patient inhalation profiles
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CONSISTENCY OF DOSE DELIVERY OF FLUTICASONE FUROATE (FF)/UMECLIDINIUM (UMEC)/VILANTEROL (VI) ACROSS PATIENT RELEVANT INHALATION FLOW RATES FROM A DRY-POWDER INHALER (DPI)
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The 6 references without a DOI — listed, not checked
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no DOI — not checkedGlaxoSmithKline. Trelegy ELLIPTA US prescribing information; 2020. Available from: https://www.gsksource.com/pharma/content/dam/GlaxoSmithKline/US/en/Prescribing_Information/Trelegy/pdf/TRELEGY-ELLIPTA-PI-PIL-IFU.PDF. Accessed September, 2020.
no DOI — not checkedGlobal Initiative for Chronic Obstructive Lung Disease. Global strategy for the diagnosis, management, and prevention of chronic obstructive pulmonary disease 2020 report; 2020.
no DOI — not checkedClement Clarke International Ltd. Disposable inspiratory one-way mouthpiece with in-check DIAL G16, instructions for use; September 2019. Available from: https://www.haag-streit.com/clement-clarke/products/inhaler-technique/in-check-dial-g16/?no_cache=1. Accessed February, 2021.
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What this badge says. CiteStamped means the CHECKABLE references of this work were clean at the dated check: each resolved to a known work in a public registry, and none carried a retraction notice at that time. It says nothing about the quality, findings, or importance of the work itself, and nothing about references deposited without a DOI.

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