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
1974 2
1975 6
1976 7
1977 6
1978 5
1979 6
1980 4
1981 4
1982 3
1983 4
1984 5
1985 5
1986 8
1987 9
1988 7
1989 22
1990 14
1991 12
1992 17
1993 10
1994 15
1995 12
1996 20
1997 23
1998 38
1999 23
2000 40
2001 35
2002 36
2003 31
2004 40
2005 41
2006 47
2007 57
2008 58
2009 57
2010 70
2011 77
2012 97
2013 94
2014 84
2015 122
2016 114
2017 140
2018 139
2019 144
2020 177
2021 181
2022 365
2023 10171
2024 8

Text availability

Article attribute

Article type

Publication date

PubMed for id: 18325

12,405 results

Results by year

Filters applied: . Clear all
Page 1
12,405 results
You have reached the last available page of results. Please see the User Guide for more information.