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
1941 1
1957 1
1958 2
1962 1
1971 1
1976 1
1980 1
1981 1
1984 1
1985 1
1986 1
1988 1
1989 3
1990 8
1991 8
1992 12
1993 13
1994 14
1995 13
1996 9
1997 10
1998 8
1999 17
2000 23
2001 26
2002 29
2003 21
2004 38
2005 47
2006 48
2007 45
2008 56
2009 60
2010 16
2011 24
2012 15
2013 10
2014 6
2015 5
2016 6
2017 5
2018 2
2019 6
2020 3
2021 1
2022 1
2024 0

Text availability

Article attribute

Article type

Publication date

Similar articles for PMID: 19180991

583 results

Results by year

Filters applied: . Clear all
Page 1
583 results