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

Year Number of Results
1915 2
1981 1
1991 1
1995 1
1997 1
1999 1
2001 2
2002 1
2004 4
2006 5
2007 9
2008 6
2009 11
2010 6
2011 20
2012 13
2013 16
2014 20
2015 17
2016 18
2017 23
2018 22
2019 26
2020 21
2021 13
Text availability
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Article type
Publication date

Similar articles for PMID: 22249979

228 results
Results by year
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228 results
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