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

Year Number of Results
1989 3
1990 1
1991 2
1992 2
1995 1
1996 1
1997 1
2001 1
2002 2
2005 4
2006 4
2007 5
2008 4
2009 3
2010 10
2011 24
2012 18
2013 19
2014 29
2015 32
2016 19
2017 13
2018 23
2019 17
2020 19
2021 11
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Publication date

Similar articles for PMID: 21784892

239 results
Results by year
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