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Results by year

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

Year Number of Results
1949 1
1952 1
1957 1
1979 1
1980 2
1981 5
1982 6
1983 4
1984 5
1985 3
1986 8
1987 8
1988 7
1989 7
1990 14
1991 11
1992 9
1993 15
1994 17
1995 18
1996 17
1997 19
1998 24
1999 26
2000 30
2001 43
2002 33
2003 37
2004 36
2005 14
2006 20
2007 9
2008 16
2009 22
2010 12
2011 15
2012 16
2013 13
2014 19
2015 15
2016 8
2017 9
2018 4
2019 7
2020 3
2021 5
2022 1
2024 0

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Similar articles for PMID: 14991769

589 results

Results by year

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589 results