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

Year Number of Results
1920 1
1958 1
1959 1
1960 1
1976 1
1977 1
1979 1
1980 3
1981 2
1982 2
1984 1
1985 1
1987 6
1988 3
1989 7
1990 3
1991 4
1992 7
1993 8
1994 11
1995 13
1996 33
1997 22
1998 28
1999 34
2000 27
2001 45
2002 49
2003 39
2004 64
2005 60
2006 90
2007 95
2008 131
2009 103
2010 97
2011 108
2012 118
2013 139
2014 127
2015 156
2016 137
2017 100
2018 75
2019 69
2020 52
2021 33
Text availability
Article attribute
Article type
Publication date

Similar articles for PMID: 19117902

1,813 results
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