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

My NCBI Filters
Results by year

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

Year Number of Results
1991 7
1993 23
1995 24
1996 176
1997 341
1998 293
1999 368
2000 464
2001 638
2002 706
2003 592
2004 546
2005 531
2006 548
2007 478
2008 486
2009 539
2010 504
2011 458
2012 508
2013 513
2014 560
2015 788
2016 884
2017 847
2018 958
2019 999
2020 1184
2021 1297
2022 1270
2023 205
Text availability
Article attribute
Article type
Publication date

Search Results

13,188 results
Results by year
Filters applied: . Clear all
Page 1
13,188 results
You have reached the last available page of results. Please see the User Guide for more information.