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
1946 1
1951 2
1952 3
1953 2
1956 1
1959 1
1988 2
1989 40
1990 106
1991 153
1992 137
1993 190
1994 196
1995 179
1996 205
1997 184
1998 192
1999 205
2000 210
2001 287
2002 279
2003 326
2004 380
2005 434
2006 537
2007 558
2008 624
2009 676
2010 712
2011 824
2012 920
2013 1045
2014 971
2015 934
2016 955
2017 941
2018 962
2019 894
2020 943
2021 879
2022 874
2023 761
2024 247

Text availability

Article attribute

Article type

Publication date

PubMed (MeSH Keyword) for id: 56842239

16,575 results

Results by year

Filters applied: . Clear all
Page 1
16,575 results
You have reached the last available page of results. Please see the User Guide for more information.