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

Filters

My NCBI Filters

Results by year

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

Year Number of Results
1931 1
1946 1
1951 1
1960 1
1980 1
1982 1
1985 2
1986 1
1987 1
1988 1
1989 1
1991 1
1992 1
1993 2
1994 3
1995 1
1996 2
1997 3
1998 5
1999 8
2000 6
2001 9
2002 8
2003 6
2004 9
2005 5
2006 14
2007 18
2008 12
2009 13
2010 8
2011 18
2012 25
2013 22
2014 39
2015 28
2016 30
2017 34
2018 27
2019 38
2020 36
2021 25
2022 20
2023 9
2024 0

Text availability

Article attribute

Article type

Publication date

Similar articles for PMID: 21396636

437 results

Results by year

Filters applied: . Clear all
Page 1
437 results