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
1969 1
1990 1
1994 4
1996 2
1997 4
1998 5
1999 7
2000 19
2001 20
2002 12
2003 9
2004 12
2005 16
2006 18
2007 15
2008 15
2009 13
2010 12
2011 16
2012 19
2013 19
2014 20
2015 15
2016 20
2017 19
2018 13
2019 6
2020 3
2021 6
2022 4
2023 1
2024 0

Text availability

Article attribute

Article type

Publication date

Similar articles for PMID: 16998811

311 results

Results by year

Filters applied: . Clear all
Page 1
311 results