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

Year Number of Results
1973 1
1975 1
1980 2
1981 1
1982 1
1984 1
1988 1
1989 3
1992 3
1993 1
1994 1
1995 2
1996 1
1998 1
1999 4
2000 1
2001 1
2002 2
2003 3
2004 6
2005 4
2006 8
2007 11
2008 10
2009 10
2010 17
2011 19
2012 21
2013 14
2014 16
2015 17
2016 10
2017 8
2018 3
2019 9
2020 12
2021 7
Text availability
Article attribute
Article type
Publication date

Similar articles for PMID: 21746720

203 results
Results by year
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203 results
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