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
1994 6
1995 48
1996 56
1997 64
1998 66
1999 59
2000 55
2001 80
2002 73
2003 55
2004 84
2005 51
2006 56
2007 51
2008 48
2009 55
2010 59
2011 90
2012 82
2013 80
2014 64
2015 62
2016 122
2017 126
2018 119
2019 120
2020 172
2021 201
2022 136
2023 133
2024 72

Text availability

Article attribute

Article type

Publication date

Search Results

2,281 results

Results by year

Filters applied: . Clear all
Page 1
2,281 results