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

Year Number of Results
1991 1
1993 2
1995 1
2000 2
2001 1
2002 1
2003 2
2004 1
2005 1
2006 1
2007 2
2008 1
2009 5
2010 22
2011 20
2012 16
2013 3
2014 5
2015 6
2016 1
2017 2
2018 3
2019 1
2021 0
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Similar articles for PMID: 21918153

95 results
Results by year
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