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
1992 1
1993 1
1994 1
1996 1
1997 2
1998 4
1999 5
2001 4
2002 3
2004 1
2005 6
2006 13
2007 22
2008 29
2009 38
2010 20
2011 30
2012 39
2013 42
2014 29
2015 19
2016 6
2017 12
2018 9
2019 25
2020 8
2021 12
2022 6
2023 1
2024 0

Text availability

Article attribute

Article type

Publication date

Search Results

356 results

Results by year

Filters applied: . Clear all
Page 1
356 results