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

Year Number of Results
1961 1
1980 1
1981 2
1985 1
1986 1
1990 1
1992 1
1994 4
1995 1
1996 1
1997 1
1999 2
2000 4
2001 6
2002 7
2003 12
2004 26
2005 48
2006 47
2007 90
2008 134
2009 79
2010 53
2011 48
2012 27
2013 27
2014 22
2015 22
2016 16
2017 9
2018 15
2019 15
2020 10
2021 11
2022 1
Text availability
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Publication date

Similar articles for PMID: 18792951

670 results
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670 results