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
1952 1
1962 1
1963 1
1971 1
1976 1
1978 2
1979 1
1981 1
1982 2
1983 3
1984 1
1985 3
1986 1
1987 1
1988 1
1990 1
1991 2
1992 6
1994 3
1995 2
1996 2
1997 3
1998 1
1999 4
2000 4
2001 5
2002 1
2003 5
2004 7
2005 15
2006 7
2007 8
2008 10
2009 14
2010 9
2011 19
2012 25
2013 20
2014 20
2015 20
2016 16
2017 14
2018 18
2019 24
2020 15
2021 21
2022 13
2023 7
2024 0

Text availability

Article attribute

Article type

Publication date

Similar articles for PMID: 21249297

326 results

Results by year

Filters applied: . Clear all
Page 1
326 results