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
1945 9
1946 44
1947 73
1948 61
1949 61
1950 72
1951 93
1952 119
1953 177
1954 235
1955 241
1956 216
1957 228
1958 236
1959 232
1960 282
1961 274
1962 324
1963 252
1964 266
1965 335
1966 266
1967 286
1968 336
1969 344
1970 324
1971 299
1972 332
1973 370
1974 445
1975 400
1976 408
1977 346
1978 388
1979 548
1980 503
1981 574
1982 475
1983 536
1984 619
1985 541
1986 610
1987 609
1988 652
1989 669
1990 578
1991 929
1992 855
1993 845
1994 797
1995 734
1996 672
1997 769
1998 831
1999 833
2000 861
2001 953
2002 995
2003 1194
2004 1309
2005 1530
2006 1606
2007 1753
2008 1998
2009 2276
2010 2499
2011 2935
2012 3043
2013 3143
2014 3428
2015 3461
2016 3745
2017 3801
2018 4277
2019 4657
2020 5622
2021 5445
2022 5214
2023 6773
2024 1969

Text availability

Article attribute

Article type

Publication date

Search Results

86,280 results

Results by year

Filters applied: . Clear all
Page 1
86,280 results
You have reached the last available page of results. Please see the User Guide for more information.