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 10
1946 36
1947 44
1948 39
1949 40
1950 65
1951 82
1952 79
1953 88
1954 78
1955 78
1956 62
1957 76
1958 55
1959 74
1960 71
1961 91
1962 86
1963 93
1964 114
1965 119
1966 110
1967 122
1968 176
1969 254
1970 229
1971 297
1972 285
1973 287
1974 258
1975 219
1976 249
1977 204
1978 203
1979 219
1980 207
1981 179
1982 199
1983 273
1984 288
1985 248
1986 205
1987 247
1988 251
1989 343
1990 411
1991 419
1992 426
1993 460
1994 455
1995 497
1996 462
1997 483
1998 509
1999 598
2000 787
2001 965
2002 1040
2003 1015
2004 1003
2005 1081
2006 1281
2007 1490
2008 1619
2009 1723
2010 2097
2011 2321
2012 2447
2013 2607
2014 2709
2015 2863
2016 2987
2017 2981
2018 2971
2019 3112
2020 3264
2021 3113
2022 2777
2023 2612
2024 1549

Text availability

Article attribute

Article type

Publication date

Search Results

55,872 results

Results by year

Filters applied: . Clear all
Page 1
55,872 results
You have reached the last available page of results. Please see the User Guide for more information.
-