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

Year Number of Results
1981 1
1991 1
1998 2
2000 1
2002 1
2003 3
2004 2
2005 1
2006 2
2007 2
2008 2
2009 3
2010 8
2011 11
2012 10
2013 10
2014 8
2015 11
2016 12
2017 11
2018 7
2019 10
2020 7
2021 2
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Article type
Publication date

Similar articles for PMID: 21903913

97 results
Results by year
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97 results