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

Year Number of Results
1957 1
1960 1
1975 1
1977 3
1978 2
1981 6
1982 2
1983 1
1986 1
1987 2
1988 1
1989 1
1990 4
1991 1
1992 4
1993 7
1994 6
1995 3
1996 15
1997 10
1998 9
1999 15
2000 12
2001 19
2002 23
2003 32
2004 33
2005 27
2006 25
2007 39
2008 51
2009 43
2010 48
2011 40
2012 33
2013 45
2014 38
2015 34
2016 39
2017 26
2018 14
2019 19
2020 6
Text availability
Article attribute
Article type
Publication date

Similar Articles for PMID: 15661711

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