Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.


The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation

Search Page


My NCBI Filters

Results by year

Table representation of search results timeline featuring number of search results per year.

Year Number of Results
2005 1
2006 1
2010 1
2011 1
2012 2
2013 3
2014 3
2015 7
2016 5
2017 4
2018 5
2020 2
2022 1
2024 0

Text availability

Article attribute

Article type

Publication date

Search Results

34 results

Results by year

Filters applied: . Clear all
Page 1
Blood Eosinophil Counts in Clinical Trials for Chronic Obstructive Pulmonary Disease.
Singh D, Bafadhel M, Brightling CE, Sciurba FC, Curtis JL, Martinez FJ, Pasquale CB, Merrill DD, Metzdorf N, Petruzzelli S, Tal-Singer R, Compton C, Rennard S, Martin UJ. Singh D, et al. Among authors: metzdorf n. Am J Respir Crit Care Med. 2020 Sep 1;202(5):660-671. doi: 10.1164/rccm.201912-2384PP. Am J Respir Crit Care Med. 2020. PMID: 32186896 Free PMC article. Review. No abstract available.
Effect of tiotropium on COPD exacerbations: A systematic review.
Halpin DM, Vogelmeier C, Pieper MP, Metzdorf N, Richard F, Anzueto A. Halpin DM, et al. Among authors: metzdorf n. Respir Med. 2016 May;114:1-8. doi: 10.1016/j.rmed.2016.02.012. Epub 2016 Mar 2. Respir Med. 2016. PMID: 27109805 Free article. Review.
Clinical Development and Research Applications of the Chronic Obstructive Pulmonary Disease Assessment Test.
Müllerová H, Dransfield MT, Thomashow B, Jones PW, Rennard S, Karlsson N, Fageras M, Metzdorf N, Petruzzelli S, Rommes J, Sciurba FC, Tabberer M, Merrill D, Tal-Singer R. Müllerová H, et al. Among authors: metzdorf n. Am J Respir Crit Care Med. 2020 May 1;201(9):1058-1067. doi: 10.1164/rccm.201907-1369PP. Am J Respir Crit Care Med. 2020. PMID: 31815521 Free PMC article. No abstract available.
Effect of a single exacerbation on decline in lung function in COPD.
Halpin DMG, Decramer M, Celli BR, Mueller A, Metzdorf N, Tashkin DP. Halpin DMG, et al. Among authors: metzdorf n. Respir Med. 2017 Jul;128:85-91. doi: 10.1016/j.rmed.2017.04.013. Epub 2017 Apr 24. Respir Med. 2017. PMID: 28610675 Free article. Clinical Trial.
34 results