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

Search Page

Filters

My NCBI Filters

Results by year

Table representation of search results timeline featuring number of search results per year.

Year Number of Results
1999 1
2000 2
2001 1
2002 37
2003 57
2004 72
2005 100
2006 133
2007 118
2008 159
2009 211
2010 217
2011 301
2012 352
2013 409
2014 420
2015 492
2016 512
2017 561
2018 652
2019 795
2020 936
2021 1129
2022 1312
2023 1240
2024 569

Text availability

Article attribute

Article type

Publication date

Search Results

9,588 results

Results by year

Filters applied: . Clear all
Page 1
9,588 results