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
1983 1
1984 1
1985 2
1986 1
1987 3
1989 2
1990 1
1991 1
1992 1
1993 2
1994 2
1996 2
1997 1
1998 1
1999 1
2000 1
2001 4
2002 1
2003 5
2004 9
2005 11
2006 10
2007 13
2008 14
2009 15
2010 14
2011 28
2012 20
2013 27
2014 49
2015 53
2016 51
2017 53
2018 37
2019 33
2020 51
2021 51
2022 62
2023 43
2024 19

Text availability

Article attribute

Article type

Publication date

Search Results

634 results

Results by year

Filters applied: . Clear all
Page 1
634 results