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
1944 1
1945 19
1946 141
1947 118
1948 120
1949 126
1950 102
1951 123
1952 112
1953 113
1954 157
1955 180
1956 162
1957 165
1958 158
1959 174
1960 196
1961 274
1962 266
1963 397
1964 471
1965 327
1966 264
1967 255
1968 293
1969 301
1970 293
1971 318
1972 312
1973 294
1974 293
1975 271
1976 258
1977 262
1978 255
1979 297
1980 230
1981 234
1982 280
1983 292
1984 296
1985 287
1986 288
1987 295
1988 364
1989 374
1990 413
1991 390
1992 375
1993 383
1994 408
1995 418
1996 438
1997 420
1998 452
1999 429
2000 451
2001 472
2002 540
2003 653
2004 737
2005 823
2006 872
2007 952
2008 1089
2009 1107
2010 1257
2011 1383
2012 1448
2013 1630
2014 1713
2015 1678
2016 1826
2017 1866
2018 2010
2019 2108
2020 1980
2021 1756
2022 1141
2023 1068
2024 958

Text availability

Article attribute

Article type

Publication date

Search Results

42,359 results

Results by year

Filters applied: . Clear all
Page 1
42,359 results
You have reached the last available page of results. Please see the User Guide for more information.
-