Skip to main page content
Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation

Search Page

My NCBI Filters
Results by year

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

Year Number of Results
1966 1
1968 1
1970 1
1975 3
1977 3
1980 7
1981 2
1982 4
1983 9
1984 7
1985 11
1986 6
1987 10
1988 5
1989 12
1990 19
1991 21
1992 25
1993 18
1994 18
1995 20
1996 15
1997 39
1998 49
1999 32
2000 25
2001 27
2002 42
2003 60
2004 65
2005 74
2006 140
2007 142
2008 244
2009 309
2010 311
2011 486
2012 550
2013 616
2014 539
2015 742
2016 834
2017 667
2018 812
2019 882
2020 1457
2021 1797
2022 71
Text availability
Article attribute
Article type
Publication date

Search Results

10,812 results
Results by year
Filters applied: . Clear all
Page 1
Statement of Retraction.
[No authors listed] [No authors listed] Nat Prod Res. 2021 Oct 22:1. doi: 10.1080/14786419.2021.1989156. Online ahead of print. Nat Prod Res. 2021. PMID: 34678080 No abstract available.
Statement of Retraction.
[No authors listed] [No authors listed] Artif Cells Nanomed Biotechnol. 2021 Dec;49(1):541. doi: 10.1080/21691401.2021.1951970. Artif Cells Nanomed Biotechnol. 2021. PMID: 34375539 No abstract available.
Statement of Retraction.
[No authors listed] [No authors listed] Artif Cells Nanomed Biotechnol. 2021 Dec;49(1):543. doi: 10.1080/21691401.2021.1951972. Artif Cells Nanomed Biotechnol. 2021. PMID: 34374607 No abstract available.
Statement of Retraction.
[No authors listed] [No authors listed] Behav Sleep Med. 2021 Jul 2:1. doi: 10.1080/15402002.2021.1943627. Online ahead of print. Behav Sleep Med. 2021. PMID: 34213987 No abstract available.
Statement of Retraction.
[No authors listed] [No authors listed] Expert Opin Biol Ther. 2021 Dec;21(12):1-2. doi: 10.1080/14712598.2021.2001186. Expert Opin Biol Ther. 2021. PMID: 34856846 No abstract available.
Statement of Retraction.
[No authors listed] [No authors listed] Artif Cells Nanomed Biotechnol. 2021 Dec;49(1):551. doi: 10.1080/21691401.2021.1951984. Artif Cells Nanomed Biotechnol. 2021. PMID: 34374623 No abstract available.
Statement of Retraction.
[No authors listed] [No authors listed] Artif Cells Nanomed Biotechnol. 2021 Dec;49(1):544. doi: 10.1080/21691401.2021.1951974. Artif Cells Nanomed Biotechnol. 2021. PMID: 34374615 No abstract available.
Statement of Retraction.
[No authors listed] [No authors listed] Artif Cells Nanomed Biotechnol. 2021 Dec;49(1):546. doi: 10.1080/21691401.2021.1951977. Artif Cells Nanomed Biotechnol. 2021. PMID: 34374611 No abstract available.
Statement of Retraction.
[No authors listed] [No authors listed] Artif Cells Nanomed Biotechnol. 2021 Dec;49(1):545. doi: 10.1080/21691401.2021.1951976. Artif Cells Nanomed Biotechnol. 2021. PMID: 34374606 No abstract available.
Statement of Retraction.
[No authors listed] [No authors listed] Artif Cells Nanomed Biotechnol. 2021 Dec;49(1):542. doi: 10.1080/21691401.2021.1951971. Artif Cells Nanomed Biotechnol. 2021. PMID: 34374605 No abstract available.
10,812 results
You have reached the last available page of results. Please see the User Guide for more information.