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
1963 1
1977 1
1984 1
1992 2
1993 1
1994 6
1995 5
1996 3
1997 4
1998 6
1999 4
2000 2
2001 6
2002 11
2003 6
2004 8
2005 5
2006 6
2007 9
2008 10
2009 15
2010 26
2011 39
2012 70
2013 77
2014 104
2015 119
2016 128
2017 119
2018 83
2019 83
2020 86
2021 80
2022 77
2023 30
2024 2

Text availability

Article attribute

Article type

Publication date

Similar articles for PMID: 22298060

1,011 results

Results by year

Filters applied: . Clear all
Page 1
1,011 results