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Results by year

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

Year Number of Results
1971 1
1984 1
1988 2
1989 1
1990 2
1991 2
1992 2
1993 1
1994 3
1995 2
1996 8
1997 4
1998 4
1999 4
2000 13
2001 11
2002 13
2003 12
2004 29
2005 21
2006 27
2007 27
2008 33
2009 26
2010 32
2011 40
2012 58
2013 58
2014 58
2015 49
2016 43
2017 47
2018 34
2019 39
2020 32
2021 26
2022 22
Text availability
Article attribute
Article type
Publication date

Similar articles for PMID: 22577236

664 results
Results by year
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664 results