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.

Https

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

Filters

My NCBI Filters

Results by year

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

Year Number of Results
2002 2
2003 8
2004 11
2005 12
2006 7
2007 11
2008 9
2009 18
2010 39
2011 20
2012 28
2013 27
2014 20
2015 23
2016 22
2017 20
2018 26
2019 34
2020 29
2021 46
2022 46
2023 39
2024 8

Text availability

Article attribute

Article type

Publication date

Search Results

456 results

Results by year

Filters applied: . Clear all
Page 1
Chronic obstructive pulmonary disease in China: a nationwide prevalence study.
Fang L, Gao P, Bao H, Tang X, Wang B, Feng Y, Cong S, Juan J, Fan J, Lu K, Wang N, Hu Y, Wang L. Fang L, et al. Among authors: hu y. Lancet Respir Med. 2018 Jun;6(6):421-430. doi: 10.1016/S2213-2600(18)30103-6. Epub 2018 Apr 9. Lancet Respir Med. 2018. PMID: 29650407 Free PMC article.
456 results