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
1999 9
2000 36
2001 31
2002 34
2003 33
2004 55
2005 65
2006 95
2007 97
2008 142
2009 162
2010 157
2011 157
2012 205
2013 284
2014 349
2015 374
2016 440
2017 467
2018 444
2019 538
2020 583
2021 607
2022 569
2023 498
2024 189

Text availability

Article attribute

Article type

Publication date

Search Results

5,738 results

Results by year

Filters applied: . Clear all
Page 1
5,738 results