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

Year Number of Results
1981 1
1982 2
1984 3
1985 1
1986 2
1987 4
1988 1
1989 2
1990 2
1991 1
1992 2
1993 1
1994 1
1995 3
1996 2
1997 3
1998 2
1999 4
2000 5
2001 7
2002 6
2003 5
2004 12
2005 12
2006 6
2007 13
2008 15
2009 12
2010 17
2011 31
2012 46
2013 54
2014 47
2015 38
2016 44
2017 40
2018 46
2019 34
2020 32
2021 22
Text availability
Article attribute
Article type
Publication date

Similar articles for PMID: 22271701

493 results
Results by year
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