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
1971 1
1974 1
1975 1
1983 2
1984 2
1985 4
1986 2
1988 5
1989 5
1990 12
1991 6
1992 16
1993 17
1994 18
1995 12
1996 20
1997 32
1998 22
1999 21
2000 19
2001 11
2002 15
2003 12
2004 9
2005 19
2006 12
2007 11
2008 9
2009 11
2010 11
2011 10
2012 5
2013 4
2014 9
2015 2
2016 10
2017 8
2018 4
2019 1
2020 4
2021 3
2022 6
2023 1
2024 0

Text availability

Article attribute

Article type

Publication date

Similar articles for PMID: 9025731

392 results

Results by year

Filters applied: . Clear all
Page 1
392 results