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 1
1946 9
1947 1
1948 4
1949 6
1950 5
1951 4
1952 10
1953 8
1954 10
1955 11
1956 15
1957 19
1958 22
1959 21
1960 22
1961 27
1962 31
1963 33
1964 30
1965 21
1966 22
1967 27
1968 12
1969 4
1970 5
1971 3
1972 1
1973 8
1974 33
1975 23
1976 125
1977 401
1978 481
1979 614
1980 884
1981 940
1982 1268
1983 939
1984 1286
1985 1351
1986 1517
1987 2315
1988 4972
1989 4963
1990 4780
1991 5167
1992 4844
1993 4912
1994 5247
1995 5425
1996 5623
1997 5131
1998 5670
1999 5601
2000 6021
2001 5866
2002 6504
2003 5660
2004 5709
2005 5374
2006 5351
2007 5676
2008 5511
2009 4937
2010 4946
2011 4550
2012 4504
2013 4130
2014 3894
2015 3531
2016 3407
2017 3236
2018 3115
2019 2957
2020 2105
2021 1457
2022 848
2023 664
2024 551

Search Results

164,825 results

Results by year

Filters applied: . Clear all
Page 1
Plasma β-amyloid1-42 reference values.
Kawada T. Kawada T. J Neurol Sci. 2019 Jan 15;396:86. doi: 10.1016/j.jns.2018.11.011. Epub 2018 Nov 9. J Neurol Sci. 2019. PMID: 30445231 No abstract available.
Arterial stiffness and reference values.
Banegas JR, Townsend RR. Banegas JR, et al. Rev Esp Cardiol (Engl Ed). 2020 Jan;73(1):11-13. doi: 10.1016/j.rec.2019.07.004. Epub 2019 Aug 9. Rev Esp Cardiol (Engl Ed). 2020. PMID: 31405793 English, Spanish. No abstract available.
Urinary ammonium: Paediatric reference values.
Cardo L, Gil-Peña H, Álvarez FV, Santos F. Cardo L, et al. Acta Paediatr. 2021 Feb;110(2):659-660. doi: 10.1111/apa.15544. Epub 2020 Sep 28. Acta Paediatr. 2021. PMID: 32810883 No abstract available.
Normal reference laboratory values?
Sioufi HA, Jacobson MS. Sioufi HA, et al. N Engl J Med. 1993 Jan 14;328(2):141-2. doi: 10.1056/nejm199301143280217. N Engl J Med. 1993. PMID: 8416435 No abstract available.
164,825 results
You have reached the last available page of results. Please see the User Guide for more information.